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What happens if Earth gets 2°C warmer?

Over the last 20 years, 2°C has been referenced in climate policies and agreements made by the Council of the European Union, the G8 (now the G7), and more. So what makes two degrees so important? -- Producer/Video by: Jason Lederman Narrator: Amy Schellenbaum Media/Archive NASA NOAA Pond5 U.S. Department of Energy U.S. Department of Defense U.S. Department of State Prelinger Archive/archive.

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