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Climate Warming concerns from Isaac Asimov Ph.D. (not an
honorary degree)
 |
Isaac Asimov PhD (Biochemistry) |
The following material demonstrates yet again that the broad outlines of the
climate change story have been understood for decades by, well, intelligent
people who are guided by science. I should not need to point out the
obvious: climate change science was essentially complete long before Al Gore,
long before the IPCC, long before the Hockey Stick.
Comment: Between 1940 and 1990, there existed a cadre of "great
American explainers" who
were able to inform the public about topics involving science. Examples include
people like Isaac Asimov,
Richard Feynman, and
Carl Sagan to only name three of
many. But since their deaths I have noticed the public slowly shift from science toward politics; meanwhile it would seem
that intelligent conversation is on the decline.
Why is it called the greenhouse effect?
CBC Radio Broadcast Date: May 21,
1977
What does the greenhouse effect have to do with a
greenhouse? And how does it work? In this 1977 clip from CBC Radio's
Quirks and Quarks, popular science author
Isaac Asimov tells us all
about the greenhouse effect and how it could be warming up the Earth. He
also explains why we should care. "
This greenhouse effect can be very
serious," says Asimov, "
and it's something that we have to take into
account."
http://www.cbc.ca/archives/categories/environment/climate-change/turning-up-the-heat-four-decades-of-climate-change/why-is-it-called-the-greenhouse-effect.html
Program Transcript (by
NSR)
| David Suzuki |
Isaac, we've been talking about a lot of words this
year that most of our listeners may never have heard before. Do
you have one that has become common in our everyday language? |
| Isaac Asimov |
Well, how about "Greenhouse Effect"? We know what a
greenhouse is. Its a very common thing. Now, as you
know, a greenhouse is made almost entirely of glass. And
you figure, why glass? And the answer to that is that
glass is transparent to visible light but not so
transparent to infrared light. Infrared light is like
visible light but has got longer waves. The longer the
waves, the less energy it has. Now here's what happens;
the high energy visible light from the sun goes through,
and it heats up whatever is inside the greenhouse.
Whatever is inside the greenhouse reradiates energy but
at a lower energy intensity. So it doesn't reradiate
visible light, it reradiates infrared. And that wont go
through the glass very well so the heat is trapped
inside the glass. The sunshine comes down, gets inside,
stays there so to speak, so that the temperature inside
the greenhouse is always higher than it is outside. And
you manage to keep the plants growing even when, outside,
it would be too cold for them to grow. Well then,
anything which has this effect of allowing visible light
to pass and being a barrier to infrared is said to have
"a greenhouse effect" |
| David Suzuki |
Um..hmm... |
| Isaac Asimov |
Now, one of the substances that has a greenhouse
effect is carbon dioxide. Carbon dioxide is transparent
to visible light but it absorbs infrared; it acts as a
heat shroud. Now in our atmosphere there are 3
hundredths of a percent of carbon dioxide. This isn't
much but it is enough to trap some heat and make the
surface of the Earth warmer by a little bit then would
otherwise be. Now when we are burning fuel at all times,
coal and oil, we are always pouring carbon dioxide into
the air. Some of the carbon dioxide dissolves in the
oceans, some of it reacts with certain chemicals in the
soil, but there's enough that gets into the atmosphere
so that its going up slightly. And possibly by the time,
um, say, another 50 years or so, it might, instead of 3
hundreds of a percent, it might be 5 hundreds of a
percent. Well we'll never know the difference; carbon
dioxide isn't particularly bad for us in that small
quantity, we'll just breathe. But, its going to stop
enough extra heat so that the surface of the Earth might
be just a degree, or so, warmer on the average than it
is now. Well this, too, isn't too bad. We can manage.
The summers will be a little warmer and the winters a
little milder. But, the peculiar thing is that perhaps
this little additional heat on the Earth, generally,
might suffice to start melting the ice caps. In other
words, right now they melt a little in the summer and
they freeze a little in the winter, and there's a
balance. But if the Earth gets even a little warmer,
maybe a little more will melt in the summer and a little
bit less will freeze in the winter, and little by little
they'll start melting. And all that water will run into
the ocean and raise the level 200 feet (~ 51 m) and
drown all the coasts, so that this greenhouse effect can
be very serious and is something we have to take into
account as we're working along. Now the planet Venus
has a thick atmosphere which is 95 percent carbon
dioxide. It has a runaway greenhouse effect and the
temperature on the planet Venus is something like 500
degrees Centigrade (932 F) [which is] hot enough to melt
lead. Entirely because of the heat trap of the
atmposphere. |
| David Suzuki |
That really worries me because my wife and I live
right on the ocean, in the ah, Pacific Ocean. |
| Isaac Asimov |
Well, I need not say that New York is right on the
Atlantic Ocean. |
| David Suzuki |
Right. What was the, ah, concern, a while back, with
the SST; that it might increase the greenhouse effect.
What was the argument there? Do you know? |
| Isaac Asimov |
Well, the SST would release... see, carbon dioxide
isn't the only molecule, uh, that acts as a greenhouse
effect, there are other complicated molecules that do
so, also. Ah, nitrous oxide, methane, and so on. Uh, but
they are present in the atmosphere is far smaller
quantities. But, the SST can release these molecules in
the upper atmosphere, and uh, even small quantities can
trap a little more heat. Also, they can react with the
ozone layer... |
| David Suzuki |
Um..hmm... |
| Isaac Asimov |
...so that it also might threaten the ozone layer.
This is not something which is absolutely certain but
some scientists thought we oughtn't to have taken
chances like that either |
| David Suzuki |
Thanks a lot Isaac. |
More Videos:
http://vidgrids.com/interview-with-isaac-asimov
A recently discovered nugget
Recently discovered nugget:
Dr. James Hansen of the NASA Goddard Institute delivers a lecture
(2010-09-15) on:
Human-Made Climate Change: A Moral, Political, and
Legal Issue.
http://ww3.tvo.org/video/163807/dr-james-hansen-human-made-climate-change
Quote (first few sentences): This topic, Human-made Climate
Change, is a moral issue because of the tremendous potential for
intergenerational injustice. And unfortunately, the political system seems to be
unable to deal with it, or is unwilling to deal with it. So I think it is going
to become a legal issue because young people deserve equal protections of the
laws. I mean, [in] the same way that civil rights was eventually dealt with by
the courts requiring governments to desegregate and provide equal rights to
minorities, I think, as I will discuss in a bit, I think that that is going to
be an essential part of the solution to get the legal (court system) involved.
Which is perhaps less influenced by fossil fuel money than the executive and
legislative branches of the governments.
Three good 'Climate Science' information sites for
citizens
and laypeople
An introduction to climate change science for the citizen/layperson.
The "truth" about the email thefts from the University of East Anglia known
as Climategate.
Shocking Revelations about American
Climate Denial
UCSD (University of California at San Diego) Professor of History
and Science Studies Naomi
Oreskes Ph.D. presented this 58 minute lecture on the
History of Global Warming Science titled
The American Denial of Global Warming
Do Climategate Emails Cut Both Ways? (yes)
Preface (face-value of the internet)
The internet is fantastic for locating things to buy (e.g. new books, out-of-print books,
etc.) but I hate
using it for doing research.
Why? Search engines preferentially return links to blog entries which appear to me
to be
no more useful than restroom graffiti. For example, it is a mystery to me why
anyone places any value in blog entries which:
- are almost never signed with a real name
- are written by people whose credentials are unknown to us
- are usually full of spelling and grammatical errors (poor spelling/grammar = poor education)
- repeat already debunked ideas like:
- vaccines causing Autism
- debunked in 2002 when science from countries like
Denmark (where all medical records of all citizens are online) show
identical autism rates in both the vaccinated group as well as the
unvaccinated group
The internet can be useful if you use it to locate high quality data
sources but this activity is a lot like "separating wheat from the chaff"
which can be tedious while never perfect. These two search tools allow
me to locate higher quality data:
Introduction
For some reason unknown to me, one of my co-workers prefers the publications of two scientists
(Roy Spencer and John Christy) at the
University of Alabama at Huntsville (UAH).
Personally speaking, I believe their scientific reputations are
diminished whenever they publish for conservative think-tanks like the
Heartland
Institute or the
George C
Marshall
Institute (where Roy Spencer is on the board of directors) but
I digress.My Personal Investigation
While I was in the middle of researching the published works of "John
Christy and
Roy Spencer", an e-friend sent me this URL (
http://www.EastAngliaEmails.com
) which will allow any visitor to search through the stolen emails at the heart of the
Novermber-2009 controversy
known as Climatgate.
I pulled up the main web page then entered the phrase “spencer christy”
into the search box which brought up 34 hits. One of them presented this 2005
email:
http://www.EastAngliaEmails.com/emails.php?eid=526&filename=.txt
From: Phil Jones <p.jones@xxxxxxxxx.xxx>
To: "Michael E. Mann" <mann@xxxxxxxxx.xxx>
Subject: Empire Strikes Back - return of proper science !
Date: Fri May 20 13:45:26 2005
Mike,
Just reviewed Caspar's paper with Wahl for Climatic Change. Looks pretty good.
Almost reproduced your series and shows where MM have gone wrong. Should keep
them quiet for a while. Also they release all the data and the R software. Presume
you know all about this. Should make Keith's life in Ch 6 easy !
Also, confidentially for a few weeks, Christy and Spencer have admitted
at the Chicago CCSP meeting that their 2LT record is wrong !! They used the wrong
sign for the diurnal correction ! Series now warms - not quite as much as the surface
but within error bands. Between you and me, we'll be going with RSS in Ch 3
and there will be no discrepancy with the surface and the models. Should make Ch 3
a doddle now ! Keep quiet about this until Bern at least. Can tell you more then.
RSS (Carl Mears and Frank Wentz) found the mistake !
The skeptic pillars are tumbling !
Cheers
Phil
Prof. Phil Jones
Climatic Research Unit Telephone +44 (0) 1603 592090
School of Environmental Sciences Fax +44 (0) 1603 507784
University of East Anglia
Norwich Email p.jones@xxxxxxxxx.xxx
NR4 7TJ
UK
Well, this was the first time I heard of this issue which prompted me to look elsewhere.
Using Search Engines to Learn More
-
Dropping the next line into a Google text box will allow you restrict
your search to the
IPCC site:
site:www.ipcc.ch Mears Wentz Spencer Christy
note: the "site:" parameter
can be used to restrict Google searches to any web site
you specify. Not just the IPCC
-
Now Google these phrases (blogs will be less useful to you than
scientific journals or pages from
NASA or NOAA):
Mears Wentz
Mears Wentz Spencer Christy
- One interesting hit came from a 2005 article in Science (
www.sciencemag.org ) titled: "The
Effect of Diurnal Correction on Satellite-Derived Lower Tropospheric
Temperature". Since I didn't have a subscription to
AAAS
(the publishers of Science), I dropped the quoted title into Google which
yielded this hit:
Abstract: "
The Effect of Diurnal
Correction on Satellite-Derived Lower Tropospheric Temperature" by Carl
A. Mears and Frank J. Wentz
Satellite-based measurements of
decadal-scale temperature change in the lower troposphere have indicated
cooling relative to Earth's surface in the tropics. Such measurements
need a diurnal correction to prevent drifts in the satellites'
measurement time from causing spurious trends. We have derived a diurnal
correction that, in the tropics, is of the opposite sign from that
previously applied. When we use this correction in the calculation of
lower tropospheric temperature from satellite microwave measurements, we
find tropical warming consistent with that found at the surface and in
our satellite-derived version of middle/upper tropospheric temperature.
http://www.remss.com/papers/mears_science_2005.pdf
- original paper published in SCIENCE
The "Coles Notes" Summary of this Dispute
Introduction to Climate Measurements
Radiosonde weather
probes are
launched from balloons at eight hundred locations every day. Nearly all routine launches occur 45 minutes before the official observation times of 0000 UTC and 1200 UTC, so as to provide an instantaneous snapshot of the atmosphere.
The measurements are sent to various groups like the
World Meteorological Organization where they are made available to
other climate researchers including those who create computer climate
models. Since humans were involved in collecting radiosonde data, many believed more accurate and consistent
measurements could be obtained using weather satellites.
But
satellites can't measure temperature directly so how do they do it? Most
people reading this will already possess some hands-on practical
experience using microwave ovens where
microwave radio waves
are employed to induce water molecules to oscillate, thus producing
kinetic energy in the form of heat. It turns out that the reverse is
also true; atmospheric heat will induce atmospheric molecules to
oscillate which, in turn, will release microwaves which can be detected
by specially constructed radio receivers. The intensity and frequency of these
microwaves enable satellites to infer the temperature and composition of
the atmosphere below.
http://en.wikipedia.org/wiki/Satellite_temperature_record
Each molecule
has its own signature microwave frequency. It is really important to
properly interpret
satellite spot measurements from successive orbits. For example, after
you remove the changes due to a rotating tilted Earth, if you compare
measurements at 7:09 today with measurements from 7:10 yesterday, you
might falsely infer a cooling trend (because today's measurement was one
minute closer to sunrise).
Two
Groups, Two ResultsIt turned out that there had been previous disagreements between the
two published interpretations of publically available raw NASA satellite measurements.
- One interpretation came from RSS (Remote Sensing Systems) and
indicated
global warming. This agreed with radiosonde data.
- The other interpretation came from UAH (University of Alabama at
Huntsville) and indicated global cooling.
Apparently it took some time
(possibly 10 years?) for the RSS researchers
to get access to the algorithms used by the
UAH researchers. The RSS people noticed
two critical
errors: One of them was a sign error in the diurnal correction term, the
other was an algebraic error.
Mears and
Wentz of RSS published their findings in
the 2 September 2005 paper issue of
Science
which is a weekly publication of the
AAAS
(American Association for the Advancement of Science). In
the letters area of the same issue, Roy Spencer and John Christy acknowledged the
errors then added "that the UAH numbers now indicate a slight
warming”. The letters go back and forth for a few months.
Access Note: signing up for a free guest account at SCIENCE
will allow you to search the articles and read abstracts. Paying $99
will allow you full access to articles and letters for 12 months. If you can't afford to pay $99 then contact your college or
university library to access SCIENCE using their subscription.
This is why this
corrected chart
titled "Surface and Satellite Temperatures" contains almost identical
trend lines (slopes) for RSS and UAH. Reading the text description
under the chart will throw more
light on the subject.
Articles describing
Satellite Temperature Measurement Science can be found here
(listed in order of simplicity):
Satellite measurements of warming in the troposphere
http://www.skepticalscience.com/satellite-measurements-warming-troposphere-basic.htm
http://www.skepticalscience.com/satellite-measurements-warming-troposphere-intermediate.htm
http://www.skepticalscience.com/satellite-measurements-warming-troposphere-advanced.htm
Of Satellites and Air – A Primer on Tropospheric temperature measurement by
Satellite
http://www.skepticalscience.com/Primer-Tropospheric-temperature-measurement-Satellite.html
Climate Change & Tropospheric Temperature Trends
http://www.scottchurchdirect.com/docs/MSU-Troposphere-Review01.pdf
The Political Controversy
No
scientists have ever, or would ever, fault Roy Spencer and John Christy
for making mistakes. Humans make mistakes. Even though scientists are
trained to
avoid the pit-falls which usually trip up non-scientists, they still
make mistakes. This is why scientists value the
peer-review
publishing process so that errors don't escape into the wild where
they would be picked up by the popular press.
However, it now
appears that
while Spencer and Christy admitted their
mistakes to other scientists in 2005, they presented an opposite face to
the North American public. When non-science people began searching
through the
Climatgate emails meant to discredit
climate science (as well as the climate scientists at
the CRU), they stumbled on the names of Spencer and Christy. Oops! Hey,
aren't these two guys always on
FOX News and
conservative talk radio saying Earth is cooling? Once you
learn that Roy Spencer is on the board of directors of
George C
Marshall
Institute (an organization previously known for publishing misleading papers
doubting the hazards of "smoking tobacco", "second hand smoke", etc.)
then you realize that the invisible hand of big business is involved.
My 2-cents
I used to think that Roy Spencer and John Christy were honorable
but misguided.
- I changed my opinion of Roy Spencer when he joined the board of
a so-called think-tank which goes by the name
George C. Marshall
Institute (an industry advocacy organization which denies
the critical science against almost
everything making a dollar)
- I just (2012) changed my opinion of John Christy after I
recently stumbled across this Record of U.S.A. Congressional
Testimony where John Christy is caught lying (I do not know if
he was under oath)
- 109th Congress House Hearings
From the U.S.
Government Printing Office via GPO Access
DOCID:
f:31362.wais
QUESTIONS SURROUNDING THE 'HOCKEY STICK'
TEMPERATURE STUDIES: IMPLICATIONS FOR CLIMATE CHANGE
ASSESSMENTS
-
http://ftp.resource.org/gpo.gov/hearings/109h/31362.txt
- search for the phrase "I want to ask Dr. Christy"
Academic Proof (from 2003)
Original Paper (from 2005)
Abstract: "
The Effect of Diurnal
Correction on Satellite-Derived Lower Tropospheric Temperature" by Carl
A. Mears and Frank J. Wentz
Satellite-based measurements of
decadal-scale temperature change in the lower troposphere have indicated
cooling relative to Earth's surface in the tropics. Such measurements
need a diurnal correction to prevent drifts in the satellites'
measurement time from causing spurious trends. We have derived a diurnal
correction that, in the tropics, is of the opposite sign from that
previously applied. When we use this correction in the calculation of
lower tropospheric temperature from satellite microwave measurements, we
find tropical warming consistent with that found at the surface and in
our satellite-derived version of middle/upper tropospheric temperature.
http://www.remss.com/papers/mears_science_2005.pdf
- original paper published in SCIENCE
Those questionable blogs
I decided to search a little further and came up with
theses
blog pages which do not contain the academic coolness of a
published peer-reviewed science paper. Nevertheless, it throws a
little more light on the bad science produced by some people
(Caveat: beware, almost all blogs contain questionable material)
So, thank god (small “g”) for the Climategate hackers because I
might have never found out about this HUGE mistake. My main questions
now are:
- If Roy Spencer and John Christy knew about their mistake in 2003
why did they not come clean
until 2005?
- Why do Roy Spencer and John Christy still claim that they are
correct while the combined efforts of several thousand, actively
publishing, peer reviewed scientists in this field are wrong? Are
they just saving face? Did they think Joe Citizen wouldn't read the
papers published in professional scientific journals?
Dr. Roy Spencer "Fesses Up" (sort of)
-
introduction to microwave satellite measurements used by Roy Spencer and
John Christy
- Roy Spence Quote to the BBC: "I
think when we made that correction, if I'm remembering correctly, I think we
went from a cooling trend to a slight warming trend; and ever since then it
has been a warming trend, actually by ever increasing anounts"
http://www.youtube.com/watch?feature=player_detailpage&v=PLnJttkhDTM#t=373s
Dr. John Christy "Fesses Up: (sort of)
The truth about the Climategate Emails (what they contain, and what they
do not)
Words and Phrases Taken Out of Context
Examples:
- Most Christians are shocked to learn that the Bible actual says "There
is no God" and it will be found between double quotes.
Yep. The
actual quote comes from Psalm 14-1
and you should all look it up.
But the quote I just gave was
take out of context. Here is the full quote:
The fool has said
in his heart, "There is no God." They are corrupt. They have done abominable
works. There is none who does good.
- This quote comes from Cardinal Richelieu (1585-1642)
"If
you give me six lines written by the most honest man, I will find something
in them to hang him."
(which reminds me of things written about
what went on when the church attacked the work of Galileo)
- During Climategate 2009 many phrases were taken out of
context then presented to the public (by the science-denial echo-chamber) as
evidence of various conspiracy theories.
- While creating a diagram for the cover of a WMO periodical, the
phrase "Hide the decline" was used in emails and refers to the fact that
tree-ring growth stopped following instrumental temperature
measurements starting around 1960 (no one knows why but some
people believe this has something to do with industrial polution). Since
tree-ring growth represents proxy data, and this data was questionable
since it conflicts will other proxies as well as instrumental
temperature measurements, the authors "hid the decline of tree ring
data" (done in one color) with the instrumental record (done in another
color)
How Did Some Scientists Get So Far Off Track?
Before launching satellites which were incapable of direct temperature
measurements, mankind had access to daily world wide temperature
measurements going back to 1860 (after mass production and distribution of
the Fahrenheit Thermometer) as well as
radiosonde data going back to 1958, both which
always indicated global warming. So when new experimental satellite technology
indicated a slight cooling, why where some researchers willing to discard
two previous data sets without an explanation?
Climate Change #1 -
"Global Warming" Food-For-Thought
- Problems with binary (this-or-that) thinking:
- In the 1960s, everyone in popular culture seemed to be
discussing B. F. Skinner's question "is it nature OR nurture?".
Today we know the correct answer is "it is nature AND nurture".
- With regard to climate change, most people are repeating the
previous mistake by posing the question "is it natural OR anthropogenic?" but
we already know the answer is "it is natural AND anthropogenic".
- Twelve thousand years ago (as the
previous
glacial period was ending and
the
Holocene
interglacial was beginning), Canada east of the Rockies as
well as
North-Eastern United States were still under the
Laurentide Ice Sheet. Since that time, this
2-3 km (1-2 mile) high ice sheet has retreated to the intersection of the
Arctic Ocean and Baffin Island which is proof
that climate warming is a fact. We know the primary reason
for ice-age cycles are changes in the shape of
Earth's
orbit around the sun as well as changes in axial inclination
(currently tilted to 23.44 degrees and decreasing) and axial procession
(a.k.a. wobble; our north pole will come closest to pointing to Polaris in 2100).
- Ten thousand years ago, the
estimated size of the human population
was between 5 and 6 million (although some publications say 1-10
million). Since then, human population is 1,000 times larger at 6.9
billion and most scientists attribute the start of the population explosion to
increased agriculture enabled by natural warming. There
have always been natural greenhouse gases in Earth's atmosphere but
industrial humans added much more beginning with
the age of steam
starting in 1770. We now know that the combination of natural
greenhouse gases and anthropogenic greenhouse gases are converting a
natural warming trend into an environmental disaster (at least one
which will hurt the agricultural productivity necessary to support 6.9
billion humans).
- On average, interglacial periods last 15,000 years. If we
weren't here making things worse, the current interglacial period
would end in about 6,000 years. Many scientists have suggested that
a human population in excess of 7 billion people will ensure that the
current interglacial will never end.
- So here is what I don't understand. If scientists warned us that
an asteroid was hurtling toward the Earth, we would do
something about it. With regards to climate warming there is a huge
push-back by some people claiming: the science is wrong, there is no
consensus, etc. Meanwhile, we are heading to destruction just as
sure as if an asteroid was headed our way. We can't change
Earth's orbit, but we can control our emissions to compensate for
it. Think about this as scaling up residential heating/cooling to a
planetary scale.
Climate Change #2 - "It Is All About the Ice" (polar as well as glacial)
- "Secondary school" science refresher for global warming
skeptics:
- Definition: one calorie of energy
is required to raise the temperature of one gram
of water by one Celsius degree (1°C).
Alternatively: one BTU (British Thermal Unit) of energy is required to raise
the temperature of one pound of water by one Fahrenheit degree (1°F).
- However, eighty calories of energy
are required to convert one gram of "zero degree
ice" into "zero degree water"
(if you look it up, the actual value is 79.72 calories or 333.55
joules but I digress). This
value is known as the
specific
melting heat of ice and is one reason why a small volume of
ice can cool a larger volume of liquid. In a hand held container,
the temperatures do not
meet in the middle. Instead, the temperature of liquid drops toward
the temperature of ice until no ice remains.
Notice that the addition of eighty calories
of energy
to 0°C ice has not increased temperature;
it has only changed the state from solid to liquid.
Here are some recently discovered "simple kitchen experiments" by Ruth Curry of Woods
Hole Oceanographic Institute (WHOI) recorded by the folks at PBS. She places water
and ice into a flask, inserts a thermometer, then applies external heat. The
water temperature increases slowly until the ice is melt. Then temperature
shoots higher.
-
Polar ice shelves and
glaciers are
melting at an unprecedented rate which means that they are currently do a
reasonably good job of slowing the rise of Earth's average surface
temperature (although the CO2 increase
began with
the beginning of the industrial revolution, things get far worse
after
human population quadruples between 1900 and 1999).
- Question: so what happens when the ice is gone?
Answer-1: Instead of every 80 calories of thermal energy converting
one gram of ice into water, it will raise the temperature of one gram
of water by 80 degrees C. Higher temperatures will kill our oceans,
increase the size and number of deserts (via
affecting
Hadley cells),
flood most river deltas with salt-water storm surges, increase storm
frequency and (to a lesser extent) intensity.
Remembering that many river headwaters originate in mountain glaciers
(six major rivers in Indo-China begin in the Tibetan plateau), the reduced
river flow will reduce the food supply
probably killing up to
one billion people. (will subsistence farmers on the equator
ever be able to buy food from developed countries?)
Answer-2: Once the
ice has melted into water, it will be
very difficult (maybe impossible) to restore it to its previous
condition. Why? From the liquid state you will require the removal of
80 calories to change the state back to ice. This might never happen
again until the next ice age. (There is a high probability of the
arctic polar ice cap totally melting because, unlike the Antarctic,
there is no underlying continent)
Recent
bad news: The Wilkins Ice Shelf is comparable in size to the US
state of Texas. Although it had been cracking for years, a Connecticut-sized
portion began calving into icebergs in April 2009 (although the news
media missed it because they were fixated upon the relatively smaller
H1N1 Mexican influenza outbreak as well as minutia from Hollywood)
- http://www.esa.int/esaEO/SEMRAVANJTF_index_0.html (European
Space Agency)
-
http://www.coolantarctica.com/Antarctica fact file/science/global_warming.htm
-
http://www.guardian.co.uk/world/2009/apr/05/ice-shelf-wilkins-antarctic
- http://news.bbc.co.uk/2/hi/science/nature/7984054.stm (with
video)
-
http://www.cbc.ca/technology/story/2009/04/28/tech-090428-wilkins-ice-shelf-antarctica.html
-
http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20090429/ice_shelf_090429/20090429/
- A flotilla of over 100 icebergs endangers shipping lanes between
Australia, New Zealand, and Tasmania. These icebergs were produced
by high temperatures in 1998-1999 causing fractures of the Ross
and Ronne Ice Shelves in 2000.
-
http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/6768364/Giant-iceberg-heading-for-Australia.html
-
http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20091201/iceberg_flotilla_091201/20091201
- Post Script: to make matters worse, melting ice is similar
to flipping a switch: ice reflects 80% of incident sunlight back into
space while water absorbs 80% of incident sunlight. This means that
planet Earth is flipping from "reflecting mode" to "absorption mode"
which could be the beginning of a thermal runaway effect. Additional
environmental heat will do many things but here are just three:
- Drive the oxygen out of water thus killing the oceans. (Trout
and Salmon prefer cold water because cold water is oxygen rich)
- Cause atmospheric oxygen to bind with minerals. Many deserts
are reddish-orange due to the combining of oxygen with minerals
(oxidization)
- Shorten winter so that disease bearing pests are not properly
terminated each year.
- Many people claim the current
warming trend is natural and they are partially correct. Earth's
current orbital shape around the Sun is nearly circular
(Eccentricity: 0.016710219) but is more elliptical during ice ages
(elliptical eccentricity is one of three Milankovitch Cycles).
Today, man-made greenhouse gas emissions are amplifying a natural
warming cycle (positive feedback) which will push Earth's climate past the tipping point
much sooner.
Orbital
Forcing
1) Orbital forcing is the effect on
climate of
slow changes in the tilt of the
Earth's axis and shape of Earth's orbit
(see Milankovitch cycles in the next section). These orbital
changes modulate the total amount of
sunlight reaching the Earth by up to 25% at mid-latitudes (from 400 to 500 W/m-2
at latitudes of 60 degrees). In this context, the term "forcing" signifies a
physical process that affects the Earth's climate.
2) This mechanism is believed to be responsible for the timing of the
ice age
cycles. A strict application of the Milankovitch theory does not allow the
prediction of a "sudden" ice age (rapid being anything under a century or two),
since the fastest orbital period is about 15,000 years. The timing of past
glacial periods coincides very well with the predictions of the Milankovitch
theory, and these effects can be calculated into the future.
3) Scientists
think Milankovitch Cycles enable/disable ice ages but
climatic feedback loops are responsible for the actual flip.
For example, Milankovitch warming causes the oceans to heat
up which triggers the release of dissolved CO2,
water vapor, and methane hydrates. These added greenhouse
gasses raise atmospheric temperatures even higher which melt
polar ice (changing albedo from light to dark) as well as melting of permafrost
which releases even more methane. |
Milankovitch
Cycles
1) Precession is the change in the
direction of the Earth's axis of rotation relative to the
fixed stars, with a period of roughly 26,000 years. This
gyroscopic motion is due to the tidal forces exerted by the
sun and the moon on the solid Earth, associated with the
fact that the Earth is an
oblate spheroid shape and not a perfect sphere. The sun
and moon contribute roughly equally to this effect.
2) The angle of the Earth's axial tilt (obliquity)
varies with respect to the plane of the Earth's orbit. These
variations are roughly periodic, taking approximately 41,000
years to shift between a tilt of 22.1° and 24.5° and back
again. When obliquity increases, the temperature difference
between winter and summer increases.
3) The shape of Earth's orbit
around the Sun is an ellipse and eccentricity
being is
a measure of the departure from circularity.
The shape of the Earth's orbit varies from being nearly
circular (low eccentricity of 0.005) to being mildly
elliptical (eccentricity of 0.058) and has a mean
eccentricity of 0.028. The major component of these
variations occurs on a period of 413,000 years. A number of
other terms vary between components 95,000 and 125,000
years, and loosely combine into a 100,000-year cycle.
4)
The result of these waves combine to enable glaciation
cycles with an average period of 100,000 years. (feedbacks
from greenhouse gases actually throw the final lever;
Volcanoes introduce a randomness which can go either way).
Within this cycle you will find an average interglacial period of
15,000 years.
Milankovitch Animations:
|
Food For Thought: the current warming trend
(which started 11,700 years ago at the end of the
previous ice age)
has enabled the human population to grow to its current size
of 6.9 billion. Things got worse with the beginning of the industrial
age and the invention of steam engines. The current level of trapped
solar energy is too high so humanity must
employ
geoengineering
along with
"CO2 reduction"
to lower the average temperature so we can maximize agricultural production. Some time
in the distant future, humanity will use
geoengineering
along with
"CO2 production"
to prevent the temperature from getting too low as we enter the next
ice age.
Think of both interventions on our part as a cosmic survival test.
-
So
with Milankovitch cycles causing the largest changes, are man-made (anthropogenic)
greenhouse gases of little
consequence? No.
Ice cores from Greenland (Camp Century) and
Antarctica (Vostok Station) provide scientists with an atmospheric
history going back 400,000 years and 600,000 years respectively. During previous interglacial periods,
natural warming occurred first which then triggered the oceans to release
dissolved CO2 (some sources say there is one molecule of
CO2 in the atmosphere for every 50 molecules dissolved in
the oceans; the amount released would depend upon the temperature
(think warm beer)). With the current interglacial, industrial
CO2 was released ahead of the warming. When our oceans
release dissolved CO2 this time around we will get a double dose. Maybe
this is already happening and may be one explanation for the blue
spike in the diagram on the right.
p.s. While ice cores trap
samples of atmospheric gas, other climate proxies like stalactites,
stalagmites, and sediment cores do not. Nevertheless, these three
methods do support the theory of Milankovitch cycles as far as
temperature and water are concerned. Indian Ocean sediment core "Vema
28-238" is probably the best sample of the lot.
- 71-minute video by Gwynne Dyer from TV Ontario titled "Climate
Wars":
http://www.tvo.org/TVO/WebObjects/TVO.woa?video?BI_Lecture_20090509_834122_GwynneDyer
Click
here for
a mini-Review of his book
- 60-minute video interview with author George Monbiot ( Heat:
How to Stop the Planet from Burning )
http://www.tvo.org/TVOsites/WebObjects/TvoMicrosite.woa?b?9076471184378400000
-
To learn more about Milankovitch and climate cycles, read the
no-nonsense book "The Discovery of Global Warming"
by Spencer Weart.
http://www.aip.org/history/climate/cycles.htm
If you don't want to but the book, you can access
it online for free here:
http://www.aip.org/history/climate/
Caveat: You may need to increase text size via the "Control - Scroll Wheel"
hack in your browser (hold down the "CTRL" key on your keyboard while rolling the scroll wheel on your
mouse to zoom in or out)
- Are there other factors affecting climate? Yes. While things like
Milankovitch cycles drive climate over tens to hundreds of thousands of
years, other factors can cause changes over the course of tens to hundreds
of years.
- Solar Cycles (Wolf Minimum, Sporer Minimum, Maunder minimum, and
Dalton minimum) are all periods when the Sun released less energy and
the Earth cooled quickly. For example, the Wolf Minimum was responsible
for the start of the Little Ice Age.
- Volcanoes can heat or cool depending upon what they emit (CO2 adds
to the greenhouse gases, while SO2 and H2SO4 can make clouds very
reflective)
- El Nino heats North America while La Nina cools it.
- All models are close approximations but they still have their uses. For
example, many people do not know that "one" of the reasons for moving to the
heliocentric system was that the mechanical models based upon epicycles were
too complicated to build and reset while the models based upon the
Copernican system were simpler. I recently learned that Maxwell built a
mechanical model while developing his theory of electromagnetic unification.
Using computers to build climate models have convinced many model
researchers to insert code they didn't previously think was important. Until
more is known about things like "solar science" and "the apparent randomness
of volcanic explosions", I fear the current models are closer to doing a
jig-saw puzzle. But even a jig saw puzzle is better than groping in the
dark. Introduction to
Climate Modelling for non-science people.
Climate Change #3 - "Global Dimming" A temporary reprieve?
NOVA | Dimming the Sun |
PBS - Many non-scientists think global warming has stopped (see this
graph:
http://en.wikipedia.org/wiki/Global_warming
) but this temporary (but still slowly rising) trend seems to be related to something called
"global dimming".
Oversimplifying the global warming equation to
just two terms:
Resultant environmental temperature = Global warming (via
greenhouse
gases) - Global dimming (via cloud formation)
With "global dimming", certain kinds of visible pollution
(smoke-stack and tail-pipe emissions, volcanoes, etc.) stimulate
white-cloud formation which reflects incoming solar energy back into
space before it can be converted to trapped heat. This "Global dimming"
theory gained unexpected real-world proof when the 9/11 attacks on New
York resulted in the grounding of American aircraft for three days.
During this time, scientists measured a very noticeable increase in
surface temperature.
Climate Change #4 - A closer look at CO2
(Earth vs. Venus)
An optimal CO
2 level is
required for complex life but too much may be as dangerous as too
little.
To see
what I mean, consider the Wikipedia-sourced data in the following
table (last column is derived from calculations):
| Object |
Temperature |
Distance from Sun km |
Atmo- spheric Pressure kPa |
Notes |
Mean Radius km |
Apparent 2-d Area (million sq-km) |
| Min |
Mean |
Max |
| Moon |
100 K |
-46 C 220
K |
390 K |
150 million |
~ 10-7 |
Same distance from the Sun as Earth Atmosphere is
very close zero Temperature extremes would kill all life |
1,737 |
9.48 |
| Earth |
-89 C 184 K |
14 C 287
K |
57 C 331 K |
150 million |
101 |
Same distance from the Sun as our moon Percentage of CO2:
0.039 ~ 9% greater atmospheric pressure than Venus |
6,371 |
127.52 |
| Venus |
- |
462 C 735 K |
- |
108 million |
93 |
Hotter than Mercury while further from the sun Percentage of CO2: 95 ~ 9% less
atmospheric pressure than Earth
|
6,051 |
115.03 |
| Mercury |
100 K
|
67
C 340 K |
700 K
|
46 million to
70 million |
0 |
Cooler than Venus while closer to the sun No atmosphere to speak of |
2,439 |
18.69 |
Initial Observations:
- Comparing Venus to Mercury
- Because Venus' atmosphere limits radiative loss, Venus
(with an atmosphere) is hotter than Mercury (no atmosphere) even
though Venus is almost twice as far from the sun as
Mercury's average distance.
- Comparing Earth to Moon
- Because Earth's atmosphere limits radiative loss, Earth's mean temperature
is 60 Celsius degrees higher relative to the
Moon.
- Because the Earth and Moon are the same distance from
the sun (on average) we can ignore solar distance and
directly compare solar energy and mean temperatures:
- We start by calculating their apparent
two-dimensional area (they appear as flat disks
when viewed from the Sun) to determine how much solar
energy is intercepted and can see that the Earth is
intercepting ~ 13 times more solar energy than the moon.
- But computing the surface area (4 x PI x r2)
of both bodies reveals that Earth is ~ 13 times larger
so everything cancels out (sort of).
- The Moon rotates only once every 27.3 days so the
sun side gets really hot (think of a very slow barbeque)
while the dark side gets really cold.
- If the moon rotated as fast as Earth (once a day)
then the solar energy would be more evenly distributed
across the whole surface.
- If the moon had any real atmosphere it would act as
a radiative buffer to "disperse/distribute inbound
energy" while "retarding outbound energy loss"
- Lack of a atmospheric buffering aside, temperature swings
on the Moon are larger because the Moon only rotates once
every 27.3 days
We can see CO2 in action (as a warming blanket) by comparing Earth to
Venus:
0000000000000000000000000000000000000000000000000011111111111111111111111111 }
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 } - million km
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 }
| | | |
Sun Mercury Venus Earth
50 M-km 108 M-km 150 M-km
- If we were being very simplistic then we would just compare the solar
distances of Venus to Earth (notice that the first three planets
are almost at one-third points from the sun). Since the ratio of 108/150 would
indicate relative coolness, then the inverse ratio of 150/108 would
indicate relative hotness; and that value is 1.39
(Venus should be 1.39 times hotter than Earth)
- But anyone familiar with radiation knows that simple inverse ratios
must be replaced with the
inverse-square law. This calculation then becomes (1502
/ 1082) =
(22500 / 11664) = 1.93 (Venus should be 1.93 times hotter than
Earth).
- But this comparison is still a bit too simplistic
since Venus is ~ 5% smaller than Earth so would intercept a
little less solar radiation at the closer position. Here it makes sense to use the
radius of the (almost) spherical body to compute the area of an
apparent two-dimensional disk as viewed from the sun. Repeating our relative
calculations using "squared distances" multiplied by "apparent
areas" yields a slightly lower solar collection factor of
1.74
(Venus should be 1.74 times hotter than Earth).
| A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
| Planet |
Mean Temp |
Mean Temp Ratio |
Mean Radius km |
Apparent 2-d Area (for solar collection) M sq-km |
Solar Distance M km |
Solar Distance Squared (F^2) |
Inverse Solar Dst Sq (1/G) |
Relative Solar Collection Factor (E x H) |
Adjusted Ratio |
| Earth |
287 K |
1.000 |
6,371 |
127.5 |
150 |
22500 |
4.44e-5 |
0.0056673 |
1.0000 |
| Venus |
735 K |
2.606 |
6,051 |
115.0 |
108 |
11664 |
8.57e-5 |
0.0098618 |
1.7401 |
- Even though Venus is ~ 5% smaller than Earth, being ~ 28%
closer to the Sun results in Venus collecting 1.74
times more solar energy.
- Comparisons:
- If Venus had an atmosphere similar to Earth's then you would
expect Venus' mean temperature to be 499 K (1.74 x 287) rather
than 735 K which is
1.47 (735 /
499) times hotter than it should be. Since
the atmospheric pressures are similar (Earth's is 9% greater but
let's ignore that for a moment) the only conclusion
we can make is that Venus' mostly CO2 atmosphere is
the cause of higher temperatures. (note: if the atmospheric
pressure of Venus were 9% greater, the resultant mean temperature would
be a little higher due to
Boyle's Law)
- If Earth were 1.47 times hotter then our mean temperature
would be 422 K (1.47 x 287)
or 147 C which is too hot for complex life.
- Caveats:
- Remember that water boils at 373.1 K
(100 C) and most complex forms of life cannot survive
323 K (50 C) which is
only 1.13 (323 /
287) times warmer than now.
- Earth's maximum surface temperature is already at
53 C which is
already 3 C degrees too hot.
- Earth cannot be allowed to warm
any further, no matter if the current levels are
natural, man-made, or a combination of both.
Current 'Climate Change' Items
- A very simple introduction to
climate modeling
for non-science people
- www.CO2now.org - resource for
CO2 emissions
- What do you get when you put a climate
scientist and 52 skeptics in a room?
-
In late June, the SBS TV program Insight recorded a program with
climate scientist Stephen Schneider. Sadly, Schneider passed away
several weeks later. In the show,
Schneider faced questions from a crowd of 52 climate skeptics.
The result airs on SBS at 7.30pm tonight. Immediately after the show
airs, Australian climate scientist David Karoly will be on the SBS
website to answer live questions. Here's what David said in a recent
email:
"When climate scientist Steve Schneider was in Australia in
June, he recorded a TV program where he answered questions on
climate change science from an audience of more than 50 people
sceptical about climate change drawn from the general public.
This hour-long program, for SBS Insight, will be shown in
Australia at 7:30pm on Tuesday 7 Sept and will be available in
full online at
http://news.sbs.com.au/insight/episode/index/id/302
- What Climate-Change Deniers Fear Most:
Thorough Explanations
- Climate change science is amazingly complex: a combination of
physics, chemistry, geology, oceanography, biology, statistics and
more... Not surprisingly, it's difficult to know what to believe
when we are bombarded with claims that global warming isn't
happening - or that climate change is simply natural - or that it's
too uncertain. The goal of
www.fool-me-once.com is to offer something that is often missing
from the coverage of climate change: thorough and accessible
explanations of the most common and contentious claims.
- Not from fool-me-once but related to LM:
- Visit www.skepticalscience.com
to compare "what climate-change deniers
wrote" vs. "what peer-reviewed climatologists published".
- http://www.ncdc.noaa.gov/oa/ncdc.html
- open access publicly available data
from the U.S. government
- www.GlobalChange.gov -
United States Global Change Research Program
-
The scientific "facts"
of climate change:
- glacial cycles are 100,000 years long (on average) and are
primarily enabled by:
- these 100,000 year cycles contain 15,000 year (on average)
interglacial warm periods.
- the current interglacial period began 11,700 years ago.
- during the previous 5 interglacial periods, natural warming
occurred first which then caused oceans to release dissolved CO2
- this time around, 6.9 billion humans have precharged the
atmosphere with industrial CO2
- when the natural warming cycle continues,
the oceans will release dissolved CO2 which means Earth's
atmosphere will experience a double dose.
- Using the geological record, science can prove that increasing
CO2 levels have always been associated with increasing
temperature levels
- Can climate change happen faster within an Interglacial period? Yes.
- Solar output varies over an 11-year solar
cycle.
- Beyond the 11-year solar cycle, other changes in solar
minimums and maximums were responsible for causing the medieval warming period as well as
the little
ice age. (see:
Spörer Minimum)
- Individual volcanoes can either heat or cool depending upon
what they emit. (see:
Global Dimming)
- After US aircraft were grounded for three days after the 9/11
attacks, Earth's surface temperature rose which means
that humanity is now dependent on the reflective contrails from high
flying Jets. (see:
Global Dimming pauses after 9/11)
- An
El Niño event will heat while a
La Niña
event will cool (this later cycle brought snow storms to
Washington D.C. causing many Americans to doubt climate warming)
- Asking the question "is climate-change natural
or
man-made?" will force us dumb primates to choose between "A" or "B".
The actual fact is that "climate-change is
natural and man-made". The current environmental danger arises from
a natural warming which receive a boost from human activities.
- Learning about Climate Change:
I have read six books on climate change in the past year (two for, two
neutral, and two against) and have come to the conclusion that learning
about this multi-discipline problem is a lot like solving a complicated
jig-saw puzzle:
- When learning how to solve jig saw puzzles, people first need to
recognize certain rules like "you can't force pieces together", etc.
- Some people cheat by continually comparing their
partial solutions to the picture on the box cover. Some people only
look at the picture once or twice. More surprisingly, some people have lost
the box cover and so are working from a purely intellectual
approach.
- Some people will only work on the puzzle for a few
hours before giving up due to boredom, lack of time, or any number
of modern life's other demands. Other people are more determined and
so will set aside a special table which will enable them to take as many
days as necessary to solve the puzzle.
- Previous success/fail rates will determine the
difficulty level of the next puzzle attempted: simple (100 pieces)
or complicated (10,000 pieces)
So what does puzzle-solving
have to do with climate change?
- In this instance
not all puzzle-solvers possess the requisite knowledge to identify
the pieces. Why? Climate change is based upon
multi-disciplined sciences which involve: Geology, Biology,
Chemistry, Physics, Solar Science, and Orbital Mechanics to only name
six. While most
children are able to quickly learn the mechanics involved in solving
a jig-saw puzzle, some form of science education is a prerequisite
to begin solving the climate change puzzle.
- Some people deny the science for religious reasons. For example,
some Christians believe the Bible's Old Testament is literally true
which means that
the world is only 6,000 years old. These people are not going to
accept any geological science proving the earth is billions of
years old. Some of my own relatives are reluctant to accept the fact
that the previous glaciation ended 11,700 years ago.
- Not all the puzzle pieces fit together in a clean way. For
example, many scientific facts come from empirical
(observational) data derived from ice cores, ocean sediments, stalactite
and stalagmite growth,
peat bogs, etc. These historical proxies for actual weather
measurements are never 100% certain which means that already
placed pieces-of-the-puzzle may need to be moved.
- I have come to the conclusion that
reading more science books (rather than visiting politically-biased
science-denial web sites) on this topic provides me a more complete view of the
puzzle's final picture. One final point: there comes a point when you don't need to
place every last piece of the puzzle to know "hey, it's going to be
a picture of Abraham Lincoln".
- Although there is never 100% agreement amongst scientists on any
topic, I have decided to only read the publications by peer reviewed
scientists AND popular authors who write about peer
reviewed science. This means I do not get my science from people
like Al Gore (for) or Christopher Monckton (against). Before I
purchase any book, I first inspect the author's body of work by
checking the titles and numbers at
Google Scholar. Just place
the author's name between double quotes for more accurate filtering
One Parting Caveat
- I know a person who only reads climate science publications produced by
physicists at the University of Alabama in Huntsville.
This may, or may not, be desirable depending on what science they
incorporate into their theories (not making any judgment here). Consider
a completely hypothetical situation where a physicist is studying the
water molecule at the atomic and molecular levels. While working from first
principles, there is nothing in this work which will tell the researcher
how water will behave dynamically in a cloud, river, lake, ocean, or
glacier. Wave dynamics alone could be a whole subspecialty. So
physicists working on climate change will need to include lots of
empirical evidence from many other scientific disciplines. If you don't
believe me then ask yourself this question: could a physicist ever develop
theories of "plate tectonics" or "impact extinction events" working only
from first principles? No, Climate Science is a collaborative
multi-science discipline so
we also should be wary of any scientist appearing to work alone or in a
small group (still not casting aspersions onto the work of physicists at
the UAH)
- According to this link:
http://www.ipcc.ch/pdf/press-ar4/ipcc-flyer-low.pdf the
IPCC 4th Assessment
Report is the result of 2500 "scientific expert reviewers"
working with 400-800 authors. Is a larger number of
scientist/authors better than a smaller number? Maybe but there are
no guarantees either way. I do know that Open Source software (e.g.
Linux) is a much better product than proprietary software (e.g.
Windows) because 5000 pairs of eyes on the Open Source code are
better than 300 on the proprietary code.
- Climate Denial Crock of the Week
- It Is All About the Ice
(polar as well as glacial)
<<<--- click here for the details
- Additional heat doesn't always increase temperature. Sometimes,
additional heat will only change the state of matter from solid to
liquid (melting ice). But what happens when all the ice is gone?
- Milankovitch Cycles enable/disable glaciations every 100,000
years (on average) but environmental feedbacks from CO2,
methane, water vapour, thermohaline circulation, and albedo tend to
snap the change either way (Milankovitch cycles involve
sine-waves but the feedbacks change them into a resultant saw tooth
wave)
- During the 15,000 year (on average)
interglacial period, the largest changes come from cool periods in
the solar cycle (e.g. The Wolf Minimum caused "the little ice age"
which is misnamed because it was not an ice age) and volcanoes which
produce CO2 (which can hold heat) and Sulphur Dioxide (which makes
clouds reflective). Environmental feedbacks will also amplify these
changes either way.

- Climate Change is causing extinction before our eyes:
- There have been five mass extinction events. One of them was caused
by a 10 km wide asteroid impact while the other four were caused by
events related to global warming. Question: How could warming cause death?
Answer: High
heat enables a population explosion of anaerobic microbes which, in turn,
kills aquatic life involved in oxygen production. Atmospheric oxygen
drops causing animals to die.
- The
Dirty-dozen of climate change denial - In 2006, according to the Pew
Research Center, 77 percent of Americans saw "solid evidence" for global
warming. By the fall of 2009, that figure had dropped to
57 percent—and
just 36 percent said they believed that humans are to blame. That's good
news for climate change sceptics and deniers, who have spent years
trying to perpetuate the illusion that the reality of climate change is
up for debate. Never mind that the scientific consensus is firmly on the
side of global warming—for anyone seeking an alternate view, there's an
entire parallel universe where junk science and bogus statistics
ricochet through an echo chamber of kooky blogs, "nonpartisan"
institutes, and fake "green" and "citizen" groups that are often acting
on behalf of the oil and coal industry.
-
www.climateprogress.org
featuring
Diagnosing a Victim of Anti-Science Syndrome (ASS)
- "Global Warming" Food-For-Thought:
- Problems with binary (this-or-that) thinking:
- In the 1960s, everyone in popular culture seemed to be
discussing B. F. Skinner's question "is it nature OR nurture?".
Today we know the correct answer is "it is nature AND nurture".
- With regard to climate change, most people are repeating the
previous mistake by posing the question "is it natural OR anthropogenic?" but
we already know the answer is "it is natural AND anthropogenic".
- Thirteen thousand years ago (as the
glacial period was ending and
the
Holocene
interglacial was about to begin), Canada "East of the Rockies" as
well as
Northern United States were still under the
Laurentide Ice Sheet.
Since that time, this 1.6 km (~ 1 mile) high ice sheet has retreated to the intersection of the
Arctic Ocean and Baffin Island which is proof
that climate warming is a fact. We know the primary reason
for ice-age cycles are changes
in the shape of Earth's
orbit around the sun as well as changes in axial inclination
(currently at 23.44 degrees and decreasing) and axial procession
(our north pole will come closest to pointing to Polaris in 2100).
Feedbacks (CO2, methane, water vapour, thermohaline circulation,
changes in albedo, etc.) cause the normally slow changes to flip
faster (Hysterisis)
- Ten thousand years ago, the
estimated size of the human population
was between 5 and 6 million (although some publications say 1-10
million). Since then, human population is 1,000 times larger at 6.9
billion and most scientists attribute the start of the population explosion to
increased agriculture enabled by natural warming. There
have always been natural greenhouse gases in Earth's atmosphere but
industrial humans added much more beginning with
the age of steam
starting in 1770. We now know that the combination of natural
greenhouse gases and anthropogenic greenhouse gases are converting a
natural warming trend into an environmental disaster (at least one
which will hurt the agricultural productivity necessary to support 6.9
billion humans).
- On average, interglacial periods last 15,000 years. If we
weren't here making things worse, the current interglacial period
would end in about 6,000 years. Until then, our environment will get
a lot hotter and drier causing many people will die of starvation.
- So here is what I don't understand. If scientists warned us that
an asteroid was hurtling toward the Earth, we would do
something about it. With regards to climate warming there is a huge
push-back by some people claiming: the science is wrong, there is no
consensus, etc. Meanwhile, we are heading to destruction just as
sure as if an asteroid was headed our way. We can't change
Earth's orbit, but we can control our emissions to compensate for
it. Think about this as scaling up residential heating/cooling to a
planetary scale.
- Want to learn the basic science behind climate change? Check out
this link:
http://climateprediction.net/content/basic-climate-science
A
related link at this site will explain the basics of computer climate
modeling.
-
George Monbiot on climate change: "The denial industry"
For years,
a network of fake citizens' groups and bogus scientific bodies has been
claiming that science of global warming is inconclusive. They set back action
on climate change by a decade. But who funded them? Exxon's involvement
is well known, but not the strange role of Big Tobacco. In the first of
three extracts from his new book titled "HEAT: How to Stop
the Planet from Burning", George
Monbiot tells a bizarre and shocking new story
- Union of Concerned Scientists
- RealClimate - "climate science"
from "the climate scientists"
- Global Warming: Man or Myth?
- ZERI.org (Zero Emissions Research
Initiatives) has successfully
reforested
8000 hectares of acidic (pH 4) savannah in Columbia. Projects like
this are probably the only practical way to reduce atmospheric CO2.
Comment: why do we dream about terraforming Mars when we have
Mars-like places on Earth requiring our immediate attention? Since plants
need sunlight, we should terraform all currently unusable land between
the Tropic of
Cancer and the
Tropic of
Capricorn. To do this, the United Nations should start their own
version of a group of volunteers similar to the
Peace Corps.
Perhaps non-violent federal prisoners volunteering for this program could have their sentences reduced by 67%.
- For the past 16 years, Norway (an oil producing & exporting nation)
has been creating an economy less dependent on oil. What prompted all
the forward thinking? A carbon tax introduced in 1992. Read the article
online without charge at Canadian Geographic Magazine:
www.canadiangeographic.ca/magazine/oct08/feature_norway_carbon_tax.asp
- Norway implemented a carbon tax to avoid the "Dutch
Disease" which is economic concept to describe something that
happened to the Netherlands when off-shore oil was discovered in
1959. Off-shore oil raised the value of their currency which then
made it impossible for manufacturers to export products. This is
happening now in Canada as Albert expands while Ontario shrinks.
East coast oil will only make things worse.
- Norway has been doing CCS (Carbon Capture and Storage) since
1996. So why does Stephen Harper say that measures like these will
hurt Canada's economy? Oh yeah I forgot: he is an elected member of
parliament representing Alberta (home of "the sands")
- Introduction to Climate
Modeling for non-science people
Marketing Trumps Science?
Web sites are popping up claiming to be "Junk Science whistle
blowers" but these propaganda sites are actually funded from the advertising
budgets of oil companies (like ExxonMobil, Imperial Oil,
etc.) and tobacco companies (like Philip Morris, Brown
and Williamson, etc.) with the intention of convincing citizens to
doubt science and then believe absurd non-sense.
Quote: As a memo from the tobacco company Brown and Williamson noted, "Doubt is our product
since it is the best means of competing with the 'body of fact' that exists
in the mind of the general public. It is also the means of establishing a
controversy." Both industries also sought to distance themselves from
their own campaigns, creating the impression that they were spontaneous
movements of professionals or ordinary citizens: the "grassroots".
These denial web sites tend to use the phrase "junk science"
when referring "to peer-reviewed scientific research" and "sound
science" when referring to "wishful thinking". To make
matters worse, these companies fund many conservative think tanks making sure
they get the academic opinions they desire. These denial sites and think tank
people reference each other during debates which later filter down to newspapers
or other web sites. Many employ scientists who "have not published any
peer-reviewed material for more than 10 years" or "are working outside their
area of expertise". For more information on this scam, please see pages 31-35 of
the 2006-2007 book "Heat" by George Monbiot (with research by Dr. Mathew
Prescott) or visit one of these links:
Art Imitates Life?
Quotes from
the 1973 movie "Soylent
Green"
- The Year: 2022. The Place: New York City. The Population:
40,000,000
- Governor Santini is brought to you today by Soylent
Red, and Soylent Yellow. And, new, delicious, Soylent Green: The
"miracle food" of high energy plankton, gathered from the oceans of
the world. Due to its enormous popularity, Soylent Green is in short
supply, so remember—Tuesday is Soylent Green day.
- You know, when
I was a kid, food was food! Until our scientists polluted the
soil... decimated plant and animal life. Why, you could buy meat
anywhere. Eggs, they had. Real butter. Fresh lettuce in the stores!
How can anything survive in a climate like
this? A heat wave all year long! The greenhouse effect! Everything
is burning up!
- You don't understand… I've seen it. I've
seen it happening. The ocean is dying, the
plankton is dying… It's people! Soylent Green is made out of
people. They're making our food out of people. Soon, they'll be
breeding us like cattle—for food! You gotta tell 'em! Listen to me,
Hatcher! You gotta tell 'em—SOYLENT GREEN IS PEOPLE! We gotta
stop them! Somehow! Listen! Listen to me… PLEASE!!!
A popular song from the 1980's
A song about "nuclear war" or "ecocide"?
I must've dreamed a thousand dreams
Been haunted by a million screams (starvation, disease, death)
But I can hear the marching feet (the climate refugees?)
They're moving into the street.
Now did you read the news today? (all corporate propaganda)
They say the dangers gone away (climate denial)
But I can see the fires still alight (world is overheating)
There burning into the night. (fires from drought)
There's too many men, (over population)
too many people, (over population)
Making too many problems (over population)
And not much love to go round (except love of money)
Cant you see
This is a land of confusion?
This is the world we live in
And these are the hands were given
Use them and lets start trying
To make it a place worth living in. (nothing to add here)
Ooh superman where are you now?
When everything's gone wrong somehow?
The men of steel, the men of power (uber-capitalism)
Are losing control by the hour. (the truth is coming out)
This is the time, this is the place
So we look for the future
But there's not much love to go round
Tell me why, this is a land of confusion.
This is the world we live in
And these are the hands were given
Use them and lets start trying
To make it a place worth living in.
I remember long ago
Ooh when the sun was shining
Yes and the stars were bright
All through the night
And the sound of your laughter
As I held you tight
So long ago
I wont be coming home tonight
My generation will put it right (push the old farts aside)
Were not just making promises ("we" will "fix" this problem)
That we know, well never keep. (wealthy people lied to us)
Too many men,
there's too many people
Making too many problems
And not much love to go round
Cant you see
This is a land of confusion?
Now this is the world we live in
And these are the hands were given
Use them and lets start trying
To make it a place worth fighting for.
This is the world we live in
And these are the names were given
Stand up and lets start showing
Just where our lives are going to.
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Neil Rieck
Kitchener - Waterloo - Cambridge, Ontario, Canada.
