By — John Yang John Yang By — Claire Mufson Claire Mufson By — Satvi Sunkara Satvi Sunkara By — Zoie Lambert Zoie Lambert Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/deep-in-the-amazon-scientists-build-a-time-capsule-to-predict-future-of-climate-change Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Audio 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. Listen to this Segment Watch Watch the Full Episode PBS NewsHour from Nov 23, 2025 By — John Yang John Yang John Yang is the anchor of PBS News Weekend and a correspondent for the PBS News Hour. He covered the first year of the Trump administration and is currently reporting on major national issues from Washington, DC, and across the country. @johnyangtv By — Claire Mufson Claire Mufson Claire Mufson is a journalist and general assignment producer at PBS News Weekend. She produces stories on a wide range of topics including breaking news, health care, culture, disability and the environment. Before joining PBS News, she worked in Paris for French public broadcasting channel France 24 and for The New York Times. By — Satvi Sunkara Satvi Sunkara Satvi Sunkara is an associate producer for PBS News Weekend. By — Zoie Lambert Zoie Lambert Zoie Lambert is a production assistant for PBS News Weekend.