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Nova

Can We Cool The Planet?

Season 47, Episode 16 of 19

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

More From this Series

Previously Aired

Day
Time
Channel
10/28/2020
9 p.m.
PBS 6
10/29/2020
2 a.m.
PBS 6
10/30/2020
2 p.m.
PBS 6
11/1/2020
7 a.m.
PBS 6
4/27/2022
9 p.m.
PBS 6
4/28/2022
2 a.m.
PBS 6
4/29/2022
2 p.m.
PBS 6
5/1/2022
7 a.m.
PBS 6
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