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Podcast: Grappling with America’s Difficult Climate Choices

Climate change has already exerted far-reaching effects

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

State Temperature Trends Since 1st Earth Day Every state in the U.S. has warmed since the first Earth Day, although the rate of warming varies.

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