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The amount of carbon dioxide (CO2) in the atmosphere today is roughly 390 parts per million (ppm), well above the 275 ppm it was before we started pumping pollution skyward during the Industrial Revolution. Climate scientists and green leaders today agree that 350 ppm would be a tolerable upper limit.

EarthTalk: Atmospheric CO2 – Is it Too Late Anyway?

EarthTalk® is a weekly environmental column made available to our readers from the editors of E/The Environmental Magazine Dear EarthTalk: I read that CO2 in our atmosphere is now more than 300 parts per million. Doesn’t this mean that we’re too late to avoid the worst impacts of climate change?  — Karl Bren, Richmond, VA Actually the amount of carbon…

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Could the warnings be any clearer? Climate tipping points are upon us and adaptation as will as mitigation are key to grappling with global warming

Closing in on Climate Tipping Points: Irreversible Climate Change, Managing the Risk and Learning to Adapt

In the past days and weeks several scientific reports indicate that, even while advocating a 1.5 to 2 C degree rise in average global temperatures over the next century, we may now be at or even passed critical tipping points and heading into a world of irreversible global warming. Earlier this month the Organization for Economic Cooperation and Development (OECD) released…

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Dr. Katherine Hayhoe: The Intimidation of Climate Scientists

There was a time when Newt Gingrich was able to have a reasonable discussion on global warming. The issues were what to do about it, not to denigrate the science and disparage climate scientists. So it came as a surprise when climate scientist and evangelical Christian Dr. Katherine Hayhoe found out in a newscast that Gingrich was going to “kill” a chapter…

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DenierGate: Forbes Op-Ed from Heartland Fellow Doubles-Down on Lobby Group’s Lost Irony

In response to the revelation the climate scientist Peter Gleick is behind last week’s scandalous “pranking” of the Heartland Institute, James Taylor, writing in Forbes, has declared the whole affair as an example of “global warming alarmist’ deceit and desperation.”  To be sure, Gleick actions are not condoned by many within (and without) the “alarmist” camp (a.k.a. climate scientists), despite…

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Heartland Institute’s Deniergate: A New Definition for Irony

The past few days haven’t been very pleasant for the faux think tank Heartland Institute. On Tuesday a source going by the name of “Heartland Insider” leaked several strategy documents and Heartland’s 2012 budget to the DeSmogBlog. A leading mouthpiece for climate denial and the fossil fuel industry, the right-wing lobbying group now finds itself at the mercy of their own tactics,…

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News from Durban: Humans Primarily Responsible for Global Warming; Good News on Forest Conservation

News on the climate change front: New research finds human activity responsible for nearly 3/4 of global temperature rise over the past 50 years; Sierra Leone establishes the Gola Rainforest National Park; the UK sends to protect Brazil’s Cerrado scrub forest from illegal logging.

The Idiots Guide to Skeptics

“Musings of a Malcontent” is a weekly op-ed by GlobalWarmingisReal contributor Carlyle Coash Well it is about time. The collective experts have spoken. The Intergovernmental Panel on Climate Change, a 2007 Nobel Prize winning group of climate scientists, are releasing a report that basically says that the bad weather is just getting started. All of the crazy storms, flooding and…

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