fred - 13 November 2008 03:24 PM
Sorry roux, booooby does not recognize that source.. He’s stilll buying carbon offsets from al…
So what are you saying? Roux tells us that CO2 emissions have a great effect on the atmosphere. He is correct. This is from Roux’ above article on the effect of manmade greenhouse gases thousands of years from now:
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In addition to the planetary shifts, they also factored in levels of carbon dioxide (CO2), found in tiny bubbles in ice cores, that provide an indicator of temperature spanning hundreds of thousands of years.
They found dramatic swings in climate, including changes when Earth flipped from one state to the other in a relatively short time, said one of the authors, geoscientist Thomas Crowley of the University of Edinburgh, Scotland. ...
There is now so much CO2 in the air, as a result of fossil-fuel burning and deforestation, that this adds a heat-trapping greenhouse effect that will offset the cooling impacts of orbital shift, said Crowley.
“Even the level that we have there now is more than sufficient to reach that critical state seen in the model,” he said. “If we cut back [on CO2] some, that would probably still be enough.”
In September, a scientific research consortium called the Global Carbon Project (GCP) said that atmospheric concentrations of CO2 reached 383 parts per million (ppm) in 2007, or 37 percent above pre-industrial levels.
Present concentrations are “the highest during the last 650,000 years and probably during the last 20 million years,” the report said.
Crowley cautioned those who would seize on the new study to say “‘carbon dioxide is now good, it prevents us from walking the plank into this deep glaciation’.”
“We don’t want to give people that impression,” he said. “(...) You can’t use this argument to justify [man-made] global warming.”
Last year, the UN’s Nobel-winning Intergovernmental Panel on Climate Change (IPCC) said that greenhouse-gas emissions were already inflicting visible changes to the climate system, especially on ice and snow.
Left unchecked, climate change could inflict widespread drought and flooding by the end of the century, translating into hunger, homelessness and other stresses for millions of people.
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Thank you Roux, and welcome to an understanding of science not filtered through true believer rightwing political ideology.
