9. What
do you think about Global Climate Change?
Archive
of Past Articles for Chapter 9
2011 June 20. NSF Press Release 11-122: Fastest Sea-level Rise in Two Millennia Linked To Increasing Global Temperatures. National Science Foundation News. Excerpt: The rate of sea level rise along the U.S. Atlantic coast is greater now than at any time in the past 2,000 years--and has shown a consistent link between changes in global mean surface temperature and sea level….
…Andrew Kemp and colleagues developed the first continuous sea-level reconstruction for the past 2,000 years, and compared variations in global temperature to changes in sea level over that time period….
2010 Sep 10. Polluter-Funded Evolution & Climate Exhibit at the Smithsonian. National Wildlife Federation. Excerpt: A "scientific" exhibit ignoring the threat of global warming at the taxpayer-funded Smithsonian Museum of Natural History in Washington, DC? Reports The New Yorker: "The David H. Koch Hall of Human Origins, at the Smithsonian’s National Museum of Natural History, is a multimedia exploration of the theory that mankind evolved in response to climate change. At the main entrance, viewers are confronted with a giant graph charting the Earth’s temperature over the past ten million years, which notes that it is far cooler now than it was ten thousand years ago. …The message… is that “key human adaptations evolved in response to environmental instability.” Only at the end of the exhibit, under the headline “OUR SURVIVAL CHALLENGE,” is it noted that levels of carbon dioxide are higher now than they have ever been, and that they are projected to increase dramatically in the next century. No cause is given for this development; no mention is made of any possible role played by fossil fuels. The exhibit makes it seem part of a natural continuum. …
Joseph Romm, a physicist who runs the Web site ClimateProgress.org, is infuriated by the Smithsonian’s presentation. “The whole exhibit whitewashes the modern climate issue,” he said. “I think the Kochs wanted to be seen as some sort of high-minded company, associated with the greatest natural-history and science museum in the country. But the truth is, the exhibit is underwritten by big-time polluters, who are underground funders of action to stop efforts to deal with this threat to humanity. I think the Smithsonian should have drawn the line.”
Cristián Samper, the museum’s director, said that the exhibit is not about climate change, and described Koch as “one of the best donors we’ve had, in my tenure here, because he’s very interested in the content, but completely hands off.” He noted, 'I don’t know all the details of his involvement in other issues.'…"
2010 July 15. Bad science: Global-warming deniers are a liability to the conservative cause. By Jonathan Kay, National Post. Excerpt: Have you heard about the “growing number” of eminent scientists who reject the theory that man-made greenhouse gases are increasing the earth’s temperature? It’s one of those factoids that, for years, has been casually dropped into the opening paragraphs of conservative manifestos against climate-change treaties and legislation.
…Fine-sounding rhetoric--but all of it nonsense. In a new article published in the Proceedings of the Natural Academy of Sciences, a group of scholars from Stanford University, the University of Toronto and elsewhere provide a statistical breakdown of the opinions of the world’s most prominent climate experts. Their conclusion: The group that is skeptical of the evidence of man-made global warming “comprises only 2% of the top 50 climate researchers as ranked by expertise (number of climate publications), 3% of researchers in the top 100, and 2.5% of the top 200, excluding researchers present in both groups …”
…Too many of us treat science as subjective — something we customize to reduce cognitive dissonance between what we think and how we live.
...The appropriate intellectual response to that challenge — finding a way to balance human consumption with responsible environmental stewardship — is complicated and difficult. It will require developing new technologies, balancing carbon-abatement programs against other (more cost-effective) life-saving projects such as disease-prevention, and — yes — possibly increasing the economic cost of carbon-fuel usage through some form of direct or indirect taxation. It is one of the most important debates of our time. Yet many conservatives have made themselves irrelevant in it by simply cupping their hands over their ears and screaming out imprecations against Al Gore.
2010 June 8. The Climate Majority. By Jon A. Krosnick, The NY Times. Excerpt: Stanford, CA -- …National surveys released during the last eight months have been interpreted as showing that fewer and fewer Americans believe that climate change is real, human-caused and threatening to people. But a closer look at these polls and a new survey by my Political Psychology Research Group show just the opposite: huge majorities of Americans still believe the earth has been gradually warming as the result of human activity and want the government to institute regulations to stop it.
…When respondents were asked if they thought that the earth’s temperature probably had been heating up over the last 100 years, 74 percent answered affirmatively. And 75 percent of respondents said that human behavior was substantially responsible for any warming that has occurred. …Fully 86 percent of our respondents said they wanted the federal government to limit the amount of air pollution that businesses emit, and 76 percent favored government limiting business’s emissions of greenhouse gases in particular. Our findings might seem implausible in light of recent polls that purport to show that Americans are increasingly skeptical about the very existence of climate change. …But
the most publicized question from a 2009 Pew Research Center poll: “From what you’ve read and heard, is there solid evidence that the average temperature on earth has been getting warmer over the past few decades, or not?” This question measured perceptions of scientific evidence that the respondent has read or heard about, not the respondents’ personal opinions about whether the earth has been warming. ...88 percent of the climate change issue public in our survey believed that global warming has been happening; 88 percent attributed responsibility for it to human action; 92 percent wanted the federal government to limit the amount of greenhouse gases that businesses can emit. Put simply, the people whose votes are most powerfully shaped by this issue are sending a nearly unanimous signal to their elected representatives.
2010 May 6. Leading scientists condemn 'political assaults' on climate researchers. By Celia Cole, The Guardian. Excerpt: A group of 255 of the world's top scientists today wrote an open letter aimed at restoring public faith in the integrity of climate science.
In a strongly worded condemnation of the recent escalation of political assaults on climatologists, the letter, published in the US Journal Science and signed by 11 Nobel laureates, attacks critics driven by "special interests or dogma" and "McCarthy-like" threats against researchers. It also attempts to set the record straight on the process of rigorous scientific research.
The letter is a response to negative publicity following the release of thousands of hacked emails from climate scientists at the University of East Anglia (UEA) and two mistakes makes by the Intergovernmental Panel on Climate Change (IPCC), the UN climate body.
The letter sets out some basic features of the scientific method. "Like all human beings, scientists make mistakes, but the scientific process is designed to find and correct them. But when some conclusions have been thoroughly and deeply tested, questioned, and examined, they gain the status of 'well-established theories' and are often spoken of as 'facts'," it says....
2010 March 29. Among Weathercasters, Doubt on Warming. By Leslie Kaufman, NY Times. Excerpt: ...Climatologists, who study weather patterns over time, almost universally endorse the view that the earth is warming and that humans have contributed to climate change. There is less of a consensus among meteorologists, who predict short-term weather patterns.
Joe Bastardi, for example, a senior forecaster and meteorologist with AccuWeather, maintains that it is more likely that the planet is cooling, and he distrusts the data put forward by climate scientists as evidence for rising global temperatures.
...Such skepticism appears to be widespread among TV forecasters, about half of whom have a degree in meteorology. A study released on Monday by researchers at George Mason University and the University of Texas at Austin found that only about half of the 571 television weathercasters surveyed believed that global warming was occurring and fewer than a third believed that climate change was “caused mostly by human activities.”
More than a quarter of the weathercasters in the survey agreed with the statement “Global warming is a scam,” the researchers found.
...A study released this year by researchers at Yale and George Mason found that 56 percent of Americans trusted weathercasters to tell them about global warming far more than they trusted other news media or public figures like former Vice President Al Gore or Sarah Palin, the former vice-presidential candidate....
2010 Feb 10. Climate-Change
Debate Is Heating Up in Deep Freeze. By John
M. Broder, NY Times. Excerpt:
WASHINGTON — As
millions of people along the East
Coast hole up in their snowbound
homes, the two sides in the climate-change
debate are seizing on the mounting
drifts to bolster their arguments.
Skeptics of global warming are using
the record-setting snows to mock
those who warn of dangerous human-driven
climate change — this looks
more like global cooling, they taunt.
Most climate scientists respond that
the ferocious storms are consistent
with forecasts that a heating planet
will produce more frequent and more
intense weather events.
But some independent climate experts
say the blizzards in the Northeast
no more prove that the planet is
cooling than the lack of snow in
Vancouver or the downpours in Southern
California prove that it is warming....
2009 Dec 9. Science
and Politics of Climate Change. New York Times.
Interactive Feature. From Joseph Fourier
to James Hansen, NOAA to I.P.C.C.,
and Kyoto to Copenhagen, a look at
the history of climate study and
diplomacy in the modern age of global
warming.
2009 November 3. Religion’s
Role in the Climate Challenge. By Andrew
C. Revkin, The NY Times. Excerpt:
A remarkable conclave of leading
figures from nine of the world’s
major religions is under way at Windsor
Castle in Britain, under the auspices
of Prince Philip and the United
Nations secretary general, Ban Ki-moon.
Called “Many Heavens, One Earth,” the
meeting is intended to generate commitments
for actions by religious organizations,
congregants and countries that could
reduce emissions of greenhouse gases
or otherwise limit the human impact
on the environment.
...Olav Kjorven, an assistant secretary
general at the United Nations involved
with the meeting, spent the last
year visiting religious orders around
the world to see what faiths could
bring to the climate table. The answer,
Mr. Kjorven told me, is a lot, and
not simply in prayer.
Religions, he explained, run more
than half the world’s schools,
so tweaking a curriculum to include
more on the environment can have
a big impact. Their vast financial
holdings provide leverage and capital
for investments with environmental
or social benefits. At the conference,
which ends on Wednesday, many faiths
will be announcing long-term
plans to make more of an impact in
an arena that has not tended to be
a top priority....
2009 August 10. The
Earth Is Warming? Adjust the Thermostat. By John Tierney,
The NY Times. Excerpt: ...geoengineering...used
to be dismissed as science fiction
fantasies: cooling the planet with
sun-blocking particles or shades;
tinkering with clouds to make them
more reflective; removing vast quantities
of carbon from the atmosphere.
Today this approach goes by the slightly
less grandiose name of climate engineering,
and it is looking more practical.
Several recent reviews of these ideas
conclude that cooling the planet
would be technically feasible and
economically affordable.
...The National Academy of Sciences
and Britain’s Royal Society
are preparing reports on climate
engineering, and the Obama administration
has promised to consider it. But
so far there has been virtually no
government support for research and
development — certainly nothing
like the tens of billions of dollars
allotted to green energy and other
programs whose effects on the climate
would not be felt for decades.
For perhaps $100 million, climate
engineers could begin field tests
within five years, says Ken Caldeira
of the Carnegie Institution for Science.
Dr. Caldeira is a member of a climate-engineering
study group that met last year at
the Kavli Institute for Theoretical
Physics under the leadership of Steven
E. Koonin, who has since become the
under secretary for science at the
United States Department of Energy.
The group has just issued a report,
published by the Novim research organization,
analyzing the use of aerosol particles
to reflect shortwave solar radiation
back into space.
These particles could be lofted into
the stratosphere to reproduce the
effects of sulfate aerosols from
volcanic eruptions like that of Mount
Pinatubo in 1991, which was followed
by a global cooling of nearly 1 degree
Fahrenheit. Just as occurred after
that eruption, the effects would
wane as the particles fell back to
Earth. Keeping the planet cooled
steadily (at least until carbon emissions
declined) might cost $30 billion
per year if the particles were fired
from military artillery, or $8 billion
annually if delivered by aircraft,
according to the Novim report....
2009 August 8. Climate
Change Seen as Threat to U.S. Security. By John
M. Broder, The NY Times. Excerpt:
WASHINGTON — The
changing global climate will pose
profound strategic challenges to
the United States in coming decades,
raising the prospect of military
intervention to deal with the effects
of violent storms, drought, mass
migration and pandemics, military
and intelligence analysts say.
Such climate-induced crises could
topple governments, feed terrorist
movements or destabilize entire regions,
say the analysts, experts at the
Pentagon and intelligence agencies
who for the first time are taking
a serious look at the national security
implications of climate change.
Recent war games and intelligence
studies conclude that over the next
20 to 30 years, vulnerable regions,
particularly sub-Saharan Africa,
the Middle East and South and Southeast
Asia, will face the prospect of food
shortages, water crises and catastrophic
flooding driven by climate change
that could demand an American humanitarian
relief or military response.
An exercise last December at the
National Defense University, an educational
institute that is overseen by the
military, explored the potential
impact of a destructive flood in
Bangladesh that sent hundreds of
thousands of refugees streaming into
neighboring India, touching off religious
conflict, the spread of contagious
diseases and vast damage to infrastructure. “It
gets real complicated real quickly,” said
Amanda J. Dory, the deputy assistant
secretary of defense for strategy,
who is working with a Pentagon group
assigned to incorporate climate change
into national security strategy planning....
If the United States does not lead
the world in reducing fossil-fuel
consumption and thus emissions of
global warming gases, proponents
of this view say, a series of global
environmental, social, political
and possibly military crises loom
that the nation will urgently have
to address....
2009 July. Atomic
Tracers. By Kathleen
M. Wong, ScienceMatters@Berkeley.
Just as
crime scene investigators use blood,
mud and other environmental clues
to find their suspects, Berkeley
professor Donald DePaolo uses isotopes
to reveal the history of rocks, water
and even the atmosphere....
2009 June 15. A
Climate (Communication) Crisis? By
Andrew C. Nevkin, The NY Times.
Excerpt:
As debates over national and global
climate and energy policy continue
to drag out, there’s
been an intensifying exploration
of climate miscommunication among
those seeking concrete actions that
will make a noticeable difference
in the atmosphere someday. If the
science pointing to a rising risk
of dangerous human interference with
climate is settled, the thinking
goes, then why aren’t people
and the world’s nations galvanized?
Maybe it’s a language problem?...
...Randy Olson, a marine scientist
turned filmmaker and now author,
said...his overall reaction was that
the commentators focusing on changing
how the climate issue is “framed” were
far too detached from the public
to have a meaningful idea of how
to make an impact. (Dr. Olson’s
forthcoming book, “Don’t
Be Such a Scientist,” aims
to help scientists communicate more
effectively with the rest of society.)
Below I’ve pasted what Dr.
Olson said he would have written
if asked whether there is a better
word, in the climate context, for
doom....
Everyone
associated with environmental communication
needs to read The Cluetrain
Mainfesto of 1999 and take it to
heart. The environmental struggle
is one big exercise in persuasion.
What the Cluetrain folks pointed
out is that humans respond to human
voices. You can “frame” all
you want, but if the communication
is coming from robots, the only ones
who will respond will be the robots....The
bottom line is it only takes a few
seconds for people to listen to a
voice and decide whether they trust
it or not. If that voice is devoid
of human qualities, and worse if
there is a clear sense that the voice
is speaking with “messages” that
have been “framed” and “focus
grouped,” it just ain’t
gonna work for the masses. And
double that for the younger masses.
...You can come up
with all the clever terms you want,
but if they are spoken by environmental
leaders who are perceived as cold,
calculating, and manipulative,
the broader audience will simply
disconnect. Not because of the
language, but because of their
basic instincts leading them to
not trust the voice they are hearing....
2009 January 19. More-Reflective
Crops May Have Cooling Effect. By
Henry Fountain, The New York Times.
Excerpt:
Some of the most imaginative solutions
to the problem of global climate
change involve planetary-scale geoengineering
projects to reduce the sunlight reaching
the Earth’s
surface. But proposals like building
a huge sunshade in space or seeding
the atmosphere with sulfate particles
would cost enormous sums and require
a degree of international cooperation
that is difficult to achieve.
Andy Ridgwell and colleagues at the
University of Bristol in England
have another idea, one they call
bio-geoengineering. Rather than developing
infrastructure to help cool the planet,
they propose using an existing one:
agriculture.
Their calculations, published in
Current Biology, suggest that by
planting crop varieties that reflect
more sunlight, summertime cooling
of about 2 degrees Fahrenheit could
be obtained across central North
America and a wide band of Europe
and Asia.
...Plants reflect slightly different
amounts of light depending on factors
like how waxy the leaves are. Even
differences in growth patterns between
two varieties of a crop — the
way leaves are arranged — can
affect reflectivity.
Existing varieties could be used,
Dr. Ridgwell said, or crops could
be bred or genetically engineered
for greater reflectivity (without
affecting yields, nutritional values
or other important characteristics)....
But it wouldn’t cost much,
and it wouldn’t require much
international cooperation. “It’s
very practical, and it could just
be done,” he said. “It’s
not some trillion-dollar pie-in-the-sky
idea.”
2008 October 30. Antarctica
hit by climate change. By Daniel Cressey,
Nature News. Excerpt:
In its landmark Fourth Assessment
Report, the Intergovernmental Panel
on Climate Change (IPCC) declared
in 2007 that human influence on climate "has
been detected in every continent
except Antarctica". Now a paper
in Nature Geoscience says that our
impact can be found even in the last
wilderness.
..."The scarcity of observations
in the Antarctic makes it harder
to identify and attribute temperature
trends, but it does not make it impossible," says
climatologist Nathan Gillett of Environment
Canada, lead author of the new study.
Previous work has seen Antarctica
temperature records ranging from
1900 to the present day collated
into one data set. Gillett and his
colleagues compared changes detailed
in that data set with temperature
changes simulated in four different
climate models, running the models
both with and without human influence
factors.
Changes actually observed did not
fit with the models when only natural
climate changes and variability were
present. They were only explainable
when human influence on the climate
was taken into account.
..."Warming in both polar regions
has many potential impacts - for
example on ice-sheet melting, sea
level and on polar ecosystems," says
Gillett, who conducted the research
while working at the University of
East Anglia in Norwich, UK....
2008 August 30. Swimmer
aims to kayak to N Pole. BBC News. Excerpt:
Long-distance swimmer Lewis Pugh
plans to kayak 1200km (745 miles)
to the North Pole to raise awareness
of how global warming has melted
the ice sheet....
Lewis Pugh has spent his life swimming
long distances....
Now, after months of tuition from Hungarian
kayaking champion Robert Hegedus, Mr
Pugh wants to become the first man
to paddle to the North Pole.
"Nobody has ever attempted to
kayak to the pole before. In fact,
it would have been impossible last
year because it was frozen over," he
said.
This year, for the first time, scientists
predict that the North Pole could briefly
be ice free and that has inspired Mr
Pugh to try to find a way through.
On Saturday he is due to set off on
the 1200km (745 mile) expedition from
Norway to the North Pole - a journey
expected to take between two and three
weeks. A support ship will follow the
kayak to provide Mr Pugh with food
and respite from the brutal conditions.
...Until now, Lewis Pugh has been famous
for completing long distance swims
in all of the world's oceans. In 2006
the former lawyer swam the length of
the River Thames and then in 2007 he
swam 1km (0.6 miles) at the North Pole.
On both occasions Mr Pugh said he wanted
to raise awareness of global warming
and its affect on the polar regions....
2008 June 6. $45
trillion needed to combat warming. By Joeseph Coleman,
Associated Press. Excerpt: TOKYO
- The world needs to invest $45 trillion
in energy in coming decades, build
some 1,400 nuclear power plants and
vastly expand wind power in order
to halve greenhouse gas emissions
by 2050, according to an energy study
released Friday.
"Meeting this target of 50 percent
cut in emissions represents a formidable
challenge, and we would require immediate
policy action and technological transition
on an unprecedented scale," IEA
Executive Director Nobuo Tanaka said.
Environment ministers from the Group
of Eight industrialized countries
and Russia backed the 50 percent
target in a meeting in Japan last
month and called for it to be officially
endorsed at the G-8 summit in July.
The study said that an average of
35 coal-powered plants and 20 gas-powered
power plants would have to be fitted
with carbon capture and storage equipment
each year between 2010 and 2050.
In addition, the world would have
to construct 32 new nuclear power
plants each year, and wind-power
turbines would have to be increased
by 17,000 units annually. Nations
would have to achieve an eight-fold
reduction in carbon intensity — the
amount of carbon needed to produce
a unit of energy — in the transport
sector.
Such action would drastically reduce
oil demand to 27 percent of 2005
demand. Failure to act would lead
to a doubling of energy demand and
a 130 percent increase in carbon
dioxide emissions by 2050, IEA officials
said.
"This development is clearly
not sustainable," said Dolf
Gielen, an IEA energy analyst and
leader for the project.
Gielen said most of the $45 trillion
forecast investment — about
$27 trillion — would be borne
by developing countries, which will
be responsible for two-thirds of
greenhouse gas emissions by 2050...
2008 May 15. NASA
SATELLITE FINDS INTERIOR OF MARS
IS COLDER.
NASA RELEASE: 08-128. Excerpt:
WASHINGTON -- New observations
from NASA's Mars Reconnaissance
Orbiter indicate that the crust
and upper mantle of Mars are stiffer
and colder than previously thought.
The findings suggest any liquid
water that might exist below the
planet's surface and any possible
organisms living in that water, would
be located deeper than scientists
had suspected. [and here's the climate
part...] ...The radar pictures also
reveal four zones of finely spaced
layers of ice and dust separated
by thick layers of nearly pure ice.
Scientists think this pattern of
thick ice-free layers represents
cycles of climate change on Mars
on a time scale of roughly one million
years. Such climate changes are caused
by variations in the tilt of the
planet's rotational axis and in the
eccentricity of its orbit around
the sun. The observations support
the idea that the north polar ice
cap is geologically active and relatively
young, at about 4 million years.
2008 April 29. Court
Forces Government to Move on Polar
Bear Status. By
ANDREW C. REVKIN, NY Times. Excerpt:
...a Federal Court ruling today ...
forces the Bush administration to
decide by mid-May whether polar bears
deserve protection under the Endangered
Species Act because of Arctic impacts
from the warming climate. ...Dana
Perino, the White House press secretary,
...[said] in a briefing preceding
Mr. Bush's latest speech on climate,
the result was a looming "regulatory
train wreck. ...This would have the
Clean Air Act, the Endangered Species
Act, and the National Environmental
Policy Act all addressing climate
change in a way that is not the way
that they were intended to"
...the administration... is pushing
for new oil and gas drilling in polar
bear habitat while biologists for
Interior Department, prodded by legal
action, recommended the bear be given
threatened status under the species
act because of the warming of the
Arctic and summer retreat of sea
ice.
"Today's decision is a huge
victory for the polar bear," said
Kassie Siegel, climate program director
at the Center for Biological Diversity
and lead author of the 2005 petition,
filed by various environmental groups....
According to ...the Natural Resources
Defense Council, which joined in
the suit, the court rejected a request
by the Interior Department for more
time, saying: "Defendants offer
no specific facts that would justify
the existing delay, much less further
delay. To allow Defendants more time
would violate the mandated listing
deadlines under the ESA and congressional
intent that time is of the essence
in listing threatened species."
...The Bush administration has argued
in various courts, including the
Supreme Court, that such efforts
will fail because, among other things,
the "remedy" for limiting
global warming must be applied globally,
not just in the United States.
2008 April 12. Hurricane
Expert Reassesses Link to Warming.
By ANDREW C. REVKIN. The NY
Times. Excerpt:
A fresh study by a leading hurricane
researcher has raised new questions
about how hurricane strength and
frequency might, or might not, be
influenced by global warming. Eric
Berger of the Houston Chronicle nicely
summarized the research on Friday… That
work was supported by some subsequent
studies, but refuted by others. Despite
the uncertainty in the science, hurricanes
quickly became a potent icon in environmental
campaigns, as well as in "An
Inconvenient Truth," the popular
climate documentary featuring former
Vice President Al Gore. The message
was that global warming was no longer
a looming issue and was exacting
a deadly toll now.
The new study, in the Bulletin of the American Meteorological
Society, is hardly definitive in its own right, essentially raising
more questions than it resolves. But it definitely rolls back
Dr. Emanuel's sense of confidence about a recent role for global
warming. (The abstract
is here. A pdf
is downloadable on Dr. Emanuel's ftp page.)
On his SciGuy blog, Eric discusses some
of the ramifications of Dr. Emanuel's new storm study… They
are solid points that hold lessons for advocates on both sides
of the charged debate over climate science and its implications
for society. There are lessons here for journalists, too. Science
is a trajectory toward understanding, not a set of truths. Sometimes
that can be inconvenient, whether writing a headline or advocating
for a climate bill.
But somehow society has to learn how to be comfortable with this
aspect of the scientific enterprise, while not fuzzing out because
things aren't crystal clear. As Stephen Schneider, a veteran
climatologist at Stanford, recently mused, the question is, "Can
democracy survive complexity?" It's
clear that Dr. Emanuel's admonition about the need for a lot
more work applies beyond the realm of science,
as well.
2008 March 25. Link
to Global Warming in Frogs' Disappearance
Is Challenged.
By ANDREW C. REVKIN, NY Times. Excerpt:
The amphibians, of the genus Atelopus
- actually toads despite their common
name - once hopped in great numbers
along stream banks on misty slopes
from the Andes to Costa Rica. After
20 years of die-offs, they are listed
as critically endangered by conservation
groups and are mainly seen in zoos.
It looked as if one research
team was
a winner in 2006 when global warming
was identified as the "trigger" in
the extinctions by the authors of
a much-cited paper in
Nature...
The "bullet," the researchers
said, appeared to be a chytrid fungus
that has attacked amphibian populations
in many parts of the world but thrives
best in particular climate conditions.
The authors, led by J. Alan Pounds
of the Monteverde Cloud Forest Preserve
in Costa Rica, said, "Here we
show that a recent mass extinction
associated with pathogen outbreaks
is tied to global warming." The
study was featured in reports last
year by the Intergovernmental Panel
on Climate Change.
Other researchers have been questioning
that connection. Last year, two short
responses in Nature questioned facets
of the 2006 paper.... Now, in the
March
25 issue of PLoS Biology,
another team argues that the die-offs
of harlequins and some other amphibians
reflect the spread and repeated introductions
of the chytrid fungus. They question
the analysis linking the disappearances
to climate change. In interviews
and e-mail exchanges, Dr. Pounds
and the lead author of the new paper,
Karen R. Lips of Southern Illinois
University, disputed each other's
analysis....
Ross A. Alford, a tropical biologist
at James Cook University in Townsville,
Australia, said such scientific tussles,
while important, could be a distraction,
particularly when considering the
uncertain risks attending global
warming. "Arguing about whether
we can or cannot already see the
effects," he said, "is
like sitting in a house soaked in
gasoline, having just dropped a lit
match, and arguing about whether
we can actually see the flames yet,
while waiting to see if maybe it
might go out on its own."
2008 Mar 18. Melting
Pace of Glaciers Is Accelerating,
Report Says By ANDREW
C. REVKIN Excerpt: Most of the world's
mountain glaciers, many of which
feed major rivers and water supplies,
are shrinking at an accelerating
pace as the climate warms, according
to a new report... issued Monday
by the World Glacier Monitoring Service,
which is based at the University
of Zurich and supported by the United
Nations Environment Program. ...The
study included data from 30 glaciers
spread around nine mountainous regions.
...The big danger ahead, several
glacier experts said, is that the
loss of glaciers would take away
a summertime source of river water,
drinking water and hydroelectric
power in populous, relatively poor
places like South Asia and the cities
along the western slope of the Andes.
"Millions of people depend on
the runoff from mountain snow and
ice in the warm seasons," said
Peter Gleick, who has studied water
and climate for two decades and is
the president of the Pacific Institute,
a private research group in Oakland,
Calif. "Climate change is going
to make that runoff disappear."
Carbon Offsets
Archive
of Past Articles for Chapter
9
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GSS
Climate Change Up-To-Date Homepage
Chapters
- What
is the Greenhouse Effect?
- What
is Global Warming?
- What
is the Controversy About?
- What's
So Special About CO2?
- How
Can We Measure Carbon Dioxide?
- Is
the Atmosphere Really Changing?
- What
are the Greenhouse Gases?
- What
are the Governments Doing about
Climate Change?
- What
do you think about Global
Climate Change
Climate
Change Education.org
“Earth: The Operators’ Manual” is a rigorously researched, beautifully filmed and ultimately uplifting antidote to the widespread “doom and gloom” approach to climate change. Host Richard Alley leads the audience on this engaging one-hour special about climate change and sustainable energy, giving a presentation that will leave viewers informed, energized and optimistic.
http://earththeoperatorsmanual.com/broadcast_info.
Offsetting
your carbon (or climate) footprint allows you
to become part of the solution to climate change by
supporting the reduction of carbon dioxide emissions
equal to your carbon footprint.
See more
on carbon offsets.
"Plan B 3.0: Mobilizing to Save Civilization" by Lester R. Brown. A book about how to build a more just world and save the planet from climate change in a practical, straightforward way. Available for purchase and free download.
Skeptic Arguments and What the Science Says from Skeptical Science.
The Scientific Guide to Global Warming Skepticism by John Cook, from Skeptical Science.
Volcanoes--do they emit more CO2 than humans?
See also article: Volcanic Versus Anthropogenic Carbon Dioxide
Young Voices on Climate Change - videos (3-6 minutes each) present positive success stories of youth, 11-17, finding local solutions to the global warming crisis, reducing the CO2 emissions of their homes, schools and communities. The videos document win-win scenarios such as 11-year old Felix Finkbeiner, a German boy who plants a million trees; four Florida middle school girls who do an energy audit and save their school $53,000; and Alec Loorz and his “imatter” and “Declaration of Independence from Fossil Fuel” campaigns. These videos were produced and directed by author/illustrator Lynne Cherry (best known for her rain forest classic/bestseller, The Great Kapok Tree) and inspired by her award-winning children’s book, co- authored with Gary Braasch, How We Know What We Know About Our Changing Climate: Scientists and Kids Explore Global Warming. http://YoungVoicesonClimateChange.com.
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