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PBS News Hour

Scientists build ‘time capsule’ to predict climate future

Season 2025 Episode 327 | 2m 17s

Hundreds of miles from the U.N. conference on climate change that wrapped this weekend in Belém, Brazil, scientists are conducting a first-of-its-kind experiment that could help future policymakers address the issue. John Yang reports.

Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by Consumer Cellular and Cunard Cruise Line. For a complete list of funders for the PBS NewsHour and PBS NewsHour weekend, click here.
Extras
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PBS News Hour
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PBS News Hour
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PBS News Hour
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Clip: S2025 E327 | 5:39
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PBS News Hour
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Clip: S2025 E326 | 6:00
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PBS News Hour
November 22, 2025 - PBS News Weekend full episode
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PBS News Hour
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PBS News Hour
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PBS News Hour
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Clip: S2025 E326 | 6:02