NOVA

Can We Cool the Planet?

Season 47 Episode 16 | 53m 31s Video has closed captioning.

As global temperatures rise, scientists are exploring solutions from planting trees to sucking carbon out of the air to geoengineering. But would they work? And what are the risks of engineering Earth's climate?

Aired: 10/28/20

Expires: 10/28/24

Rating: TV-G

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