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While perusing some of the review comments to the IPCC’s Fourth Assessment Report, I came across the contributions of Andrew Lacis, a colleague of James Hansen’s at GISS. Lacis’s is not a name I’ve come across before but some of what he has to say about Chapter 9 of the IPCC’s report is simply breathtaking. Chapter 9 is possibly the most important one in the whole IPCC report – it’s the one where they decide that global warming is manmade. This is the one where the headlines are made. Remember, this guy is mainstream, not a sceptic, and you may...

Two years before the Fourth Assessment Report of the Intergovernmental Panel on Climate Change was released in 2007, this comment about an early draft of the report came in from Andrew Lacis, a physicist at the Goddard Institute for Space Studies, the NASA lab led for decades by the "godfather" of the global warming hoax, Dr. James Hansen: There is no scientific merit to be found in the Executive Summary. The presentation sounds like something put together by Greenpeace activists and their legal department. The points being made are made arbitrarily with legal sounding caveats without having established any...

NEW YORK -- Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on the atmospheric level of carbon dioxide. The study, conducted by Andrew Lacis and colleagues at NASA's Goddard Institute for Space Studies (GISS) in New York, examined the nature of Earth's greenhouse effect and clarified the role that greenhouse gases and clouds play in absorbing outgoing infrared radiation. Notably, the team identified non-condensing greenhouse gases -- such as carbon dioxide, methane, nitrous oxide, ozone, and chlorofluorocarbons -- as providing the core...

Oct. 15) -- The Earth's atmosphere is a complicated place. Somewhere in that swirling, shifting mixture of air, water and other gasses is the key to keeping us earthlings alive -- or to cooking us. Carbon dioxide has always received the most media attention as the leading cause of climate change, and a new study from NASA does more than concur with this assessment: It finds CO2 is overwhelmingly responsible for raising Earth's temperature.

(Source: global-greenhouse-warming.com) Water vapor and clouds cannot sustain the greenhouse effect on their own Researchers at NASA's Goddard Institute for Space Studies (GISS) have concluded, through the use of a new atmosphere-ocean climate model, that carbon dioxide manipulates Earth's temperature.  Andrew Lacis of the GISS, along with David Rind and other colleagues, studied the Earth's greenhouse effect, and has concluded that non-condensing greenhouse gases such as carbon dioxide, ozone, chlorofluorocarbons, nitrous oxide and methane play central roles in the greenhouse effect.  While water vapor and clouds are the major players when it comes to Earth's greenhouse effect, Lacis and his colleagues...