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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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53:23
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.
53:51
Join scientists as they grab light from across the universe to prove quantum entanglement.
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53:21
Follow engineers and woodworkers as they rebuild an iconic American covered bridge.
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53:34
Follow the harrowing operation to rescue 12 boys stranded in a flooded cave in Thailand.
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53:15
How courage and ingenuity saved Allied troops during the epic Dunkirk operation in 1940.
53:26
Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.
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54:10
Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.
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53:11
Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.
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54:10
Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.