Showing posts with label Hansen. Show all posts
Showing posts with label Hansen. Show all posts

Tuesday, August 19, 2008

Hansen — Mankind now controls climate

Set aside an hour for yourself, and hear it from Dr James Hansen



C/o 回転ドア Revolving Doors

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James Hanson tips cold water on sun theory

This takes The Great Global Warming Swindle down with it...
clipped from www.desmogblog.com

In another section of his recent "trip report " (see "westling" post below), James Hansen, head of the NASA Goddard Institute for Space Studies, answers in careful but fairly accessible detail, the question of whether the sun can reasonably be blamed for recent global warming.

His conclusion:

Thus if the sun remains “out”, i.e., stuck for a long period in the current solar minimum, it can offset only about 7 years of CO2 increase. The human-made greenhouse gas climate forcing is now relentlessly, monotonically, increasing at a rate that overwhelms variability of natural climate forcings. Unforced variability of global temperature is great, as shown in Figure 4, but the global temperature trend on decadal and longer time scales is now determined by the larger human-made climate forcing. Speculation that we may have entered a solar-driven long-term cooling trend must be dismissed as a pipe-dream.

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Friday, June 27, 2008

Put big fossil fuel on the dock

James Hansen wants oil executives who sponsor the PR war on climate science to go to jail.

Monboit says it's not a crime, but then sheet the potential blame for runaway climate change to the fossil-fuel funded effort to sow doubt about what scientists are telling us.

But the culpability of the energy firms the climate scientist James Hansen will indict in his testimony to Congress today is clear. If we fail to stop runaway climate change, it will be largely because of campaigning by oil, coal and electricity companies, and the network of lobbyists, fake experts and thinktanks they have sponsored.

It would be a crime, if we weren't all addicted to oil. Part of the reason for the ongoing addiction has been the misinformation campaign. And its something I can't just shrug my shoulders at, as Monboit seems to.

I strongly feel that news organisations who publish climate change material that does not source the peer-reviewed literature should face public censure.

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Wednesday, June 25, 2008

Stop now. Or we're toast: Hansen tells Congress

Well, they didn't get it when he explained the science, the first time.

Exactly 20 years after warning America about global warming, a top NASA scientist says the situation has got so bad that the world's only hope is drastic action.

James Hansen told US Congress today that the world has long passed the "dangerous level" for greenhouse gases in the atmosphere and needs to get back to 1988 levels.

He said Earth's atmosphere can stay this loaded with man-made carbon dioxide only for a couple more decades without changes such as mass extinction, ecosystem collapse and dramatic sea level rises.

"We're toast if we don't get on a very different path," Hansen, director of the Goddard Institute of Space Sciences, who is sometimes called the godfather of global warming science, told The Associated Press. "This is the last chance."


He's the head of NASA's Goddard Institute of Space Studies. We'd be stupid not to listen.

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