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PBS News Hour

Onboard an expedition to study a massive, melting glacier

Season 2025 Episode 365 | 5m 19s

Some call it the ‘Doomsday Glacier,’ a vast expanse of Antarctic ice roughly the size of Florida. As temperatures rise, the Thwaites Glacier is melting fast and threatens to raise global sea levels. That’s why a team of nearly 40 researchers is embarking on a two-month journey to study it. Science correspondent Miles O’Brien is with the expedition and 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.
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