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Congress has asked the U.S. National Academy of Sciences to conduct special studies through the year 2010 – focused on climate change. Here's National Academy of Sciences president, Ralph Cicerone, speaking at a March 2009 summit centered on America's climate choices.

Ralph Cicerone: This is a study that was requested by the United States Congress basically to analyze the latest information on climate and to give some policy guidance to the federal government on what actions they should take to deal with climate change to limit its scope and also to adapt to whatever does happen.

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Ralph Cicerone: It's really long overdue. [---2---]

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Ralph Cicerone: That it's real. We've seen the big signs. [---4---] And how much cooperation it's going to take from everybody. That's the big message: how much understanding and cooperation and commitment it's going to take from everybody.

【視聽(tīng)版科學(xué)小組榮譽(yù)出品】
Cicerone said the urgency to reduce greenhouse gas emissions from the burning of fossil fuels is clear. Probably what's going to be required is a series of actions, a lot of them having to do with energy efficiency and energy technology that are not going to happen in one month. We asked, what's the most important thing about climate change that people today should know? Now we're trying to figure out better what's happening in everybody's individual geographical region and then to try to limit it.