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A compendium of science-based information

Podcast: What To Do With CO2

Podcast: Grappling with America’s Difficult Climate Choices

What are the advantages of observations of Earth from space?

If we can’t predict weather two weeks ahead, how can we predict climate fifty years from now?

What is the greenhouse effect?

What is the difference between global warming and climate change?

How do we know global warming is not a natural cycle?

Is there disagreement among scientists about climate change? Is it caused by humans?

Gallery

Ruthless Tornadoes of 2011 Photos from one of the worst tornado seasons to ever hit the U.S.

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