What is the new CO2 in the air?


Now Playing: The new CO 2 in the atmosphere: Why it’s so scary Now Playing, CO2’s role in climate change Now Playing How much CO 2 does it take to make the atmosphere a “frozen” state?

Now Playing What the new global CO2 is making now Now Playing Scientists are using a satellite to measure CO 2 and the world’s oceans Now Playing Trump is ‘sickening’ to Russia, but the rest of the world is still listening Now Playing The world’s CO2 levels are dropping again Now Playing Why global warming is making some people sick Now Playing

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