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NOVA
Cutting our Greenhouse Gas Emissions to Zero
Most experts agree that the key to avoiding worsening effects from a changing climate is to cut greenhouse gas emissions to zero. Explore how scientists approach the challenge, and discover the technologies that can help get us there.
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What exactly is crypto, and how does it work? This technology is more than just money.
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53:32
Meet one of the ocean’s most beautiful and destructive species: Lionfish.
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Psychedelics are unlocking new ways to treat conditions like addiction and depression.
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Is artificial intelligence making policing and courts fairer, or is it increasing bias?
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53:43
A team tackles the restoration of iconic Notre Dame Cathedral.
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Can innovative engineering projects save Venice?
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Can innovative drugs and therapies finally end HIV?
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Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.
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How could a single ship cause a major supply chain crisis around the globe?
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Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.
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In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate