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NOVA
Can Geoengineering “Undo” Climate Change?
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.
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53:34
What are the weirdest worlds in our solar system, and how did they come to be?
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53:34
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
53:38
Explore big discoveries that have revolutionized our understanding of the universe.
53:10
Follow the quest to recover DNA millions of years old for the very first time.
53:15
Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
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53:17
New evidence reveals the real story of Easter Island and the builders of its stone heads.
53:35
Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
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53:30
A family turns to science in their struggle to rediscover a history obscured by slavery.
