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Thu, 2013-06-06 05:00Graham Readfearn
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The Campaigns That Tried To Break The Climate Science Consensus

So just in case anyone wasn’t sure, a major study of almost 12,000 scientific papers on global warming between 1991 and 2011 finds less than one per cent disagree that humans are the main cause.

Published in the journal Environmental Research Letters, the study led by John Cook, the Australia-based founder of Skeptical Science, confirms the debate about the causes of global warming had all but vanished in the scientific literature by the early 1990s. Almost all the research says it’s mostly caused by humans.

For any followers of climate science in journals (the place where it actually matters) the finding wasn’t really news at all.

Yet survey after survey finds the public still thinks scientists are arguing over the causes of global warming and the media continues to attempt to resuscitate long-dead ideas.

Does it matter that people have a clear understanding of the main thrust of the science? A 2012 study in the journal Nature Climate Change found that people were more likely to accept human-caused global warming if they were informed that scientists were in broad agreement (which we know they are).

For decades, fossil fuel-funded groups, free market think tanks (some of which also qualify as fossil fuel funded groups) and the fossil fuel industry itself have known the importance of the public’s understanding of the state of climate science. A public that understands the state of the science is more likely to want something done about climate change. Doing something, means using a lot less fossil fuel.

But who wanted to tell the public that a consensus didn’t exist? Here are just some of the campaigns run over the years showing how breaking the consensus in the eyes of the public was a key strategy.

Mon, 2013-02-04 11:06Guest
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The Baffling Response to Arctic Climate Change

By David Suzuki

The Arctic may seem like a distant place, just as the most extreme consequences of our wasteful use of fossil fuels may appear to be in some distant future. Both are closer than most of us realize.
 
The Arctic is a focal point for some of the most profound impacts of climate change. One of the world’s top ice experts, Peter Wadhams of Cambridge University, calls the situation a “global disaster,” suggesting ice is disappearing faster than predicted and could be gone within as few as four years.
 
“The main cause is simply global warming: as the climate has warmed there has been less ice growth during the winter and more ice melt during the summer,” he told the U.K.’s Guardian.
 
Over the past 30 years, permanent Arctic sea ice has shrunk to half its previous area and thickness. As it diminishes, global warming accelerates. This is due to a number of factors, including release of the potent greenhouse gas methane trapped under nearby permafrost, and because ice reflects the sun’s energy whereas oceans absorb it.

Tue, 2012-09-25 16:00Farron Cousins
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Climate Skeptic Attacks PBS For Not Reporting Irrelevant Information

Recently, PBS found itself on the wrong side of the climate change discussion, when it chose to air a one-sided, misinformation-laden interview with climate skeptic Anthony Watts. During the interview for PBS’s Newshour, no attempt was made to air a differing opinion from a credible source, leaving Watts’ incorrect statements to be aired unchallenged.

Perhaps in an attempt to “balance” their one-sided interview with Watts, last week Newshour aired a segment titled “Arctic Icecap Shrinks to Record Low Level,” in which Walt Meier from the National Snow and Ice Data Center discussed the implications, dangers, and causes of the Arctic ice melt. These causes and concerns have been documented in studies and articles all across the world, so there is no room for debate on this issue when the facts clearly show that the arctic ice caps are melting at a record.

But apparently for climate skeptics, one one-sided story isn’t enough to keep them happy for very long, and they have now decided to attack PBS for ignoring their talking points about melting polar ice caps.

Wed, 2012-08-15 14:36Ben Jervey
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"Goliath" Melting Year Shatters Records in Greenland

It’s been a “Goliath,” record-setting melting year in Greenland, home of the world’s second largest ice shelf. On August 8th, a full four weeks before the end of “melting season,” cumulative melting on the island had exceeded the previous record set in 2010, which included the full season.

The record melt was figured by the “cumulative melting index,” created by researcher Marco Tedesco of The City College of New York’s Cryosphere Processes Laboratory to measure the “strength” of the melting season. The index is basically the number of days when melting occurs multiplied by the physical area that is subject to melting.

Tedesco said in a statement, “With more yet to come in August, this year’s overall melting will fall way above the old records. That’s a goliath year – the greatest melt since satellite recording began in 1979.”

Earlier this summer, much was made of a massive melt event on Greenland, during which 97 percent of the island’s ice sheet surface area experienced thaw and melt over a short couple of days. While the event was startling, and a direct result of record high surface air temperatures, this measure of the overall melting is far more alarming.

Sat, 2012-07-21 10:38Evan Leeson
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Black Day in July for Greenland Ice Sheet

How hot is it this year?

Maybe the breaking of thousands of temperature records across the USA so far this year didn't get your attention.

Perhaps you have yet to be presented with the scary facts in Bill McKibben's latest article about Climate Change's New Math.

Well if you missed those cheery bits of reporting, have a gander at this shocking graph from meltfactor.org that shows a mind-blowing change in Greenland's ice sheet “albedo.” It has literally fallen off the chart in comparison to previous years.

Sat, 2012-05-26 12:00Evan Leeson
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Shrinking Arctic Ice May Cause Mercury Poisoning

Arctic ice cap shrinkage over 32 years

NASA has shown repeatedly that the Actic icecap is melting, and melting faster than climate models predict. This new visualization is stark and should be of obvious concern, simply because of the impact on sea levels. Now there is a potentially new threat. The process of shrinkage may cause a chemical reaction that could poison the Arctic ecosystem with mercury.

The disappearance of old, thick ice in the Arctic means an increase in bromine released into the atmosphere. The new, thinner ice has more salt and this is where the bromine comes from. As it melts it interacts with relatively benign gaseous mercury causing it to solidify and fall in a toxic form to the ground and into ocean water. The old old ice has less salt.

Image source: NASA

it is currently popular in denier circles to tout the April 2012 ice sheet extension as a sign of slowing of Arctic ice melt. This grasping at straws is not supported by the overall data, which shows Acrtic ice disappearance increasing. The April extent is mainly thinner, new ice that will easily melt, potentially causing the “bromine explosiion” described by NASA. The old, thicker icecap is shrinking more rapidly as time passes, and with it, the benign melting of salt-depleted ice.

Mon, 2009-09-07 08:38Peter Sinclair
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Climate Denial Crock of the Week/1998 Revisited

One of the enduring myths of climate denialism is that global warming stopped sometime in the last decade. I see it in the blaring headlines of pseudoscience websites, in comments on my videos, even some of our most “distinguished” journalists have been taken in.

 

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