NOVA

Can Geoengineering “Undo” Climate Change?

Clip: Season 47 | 4m 41s  | Video has closed captioning.

Discover how geoengineering solutions—from techniques as natural as planting trees, to vacuuming CO2 out of the air, to science-fiction alternatives like blocking sunlight—can help humanity turn the tide on climate change, and why these approaches are controversial.

Aired: 06/24/20

Rating: NR

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Problems Playing Video? | Closed Captioning

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