PBS News Hour

Why we’re ‘perilously close’ to a global warming threshold

This past week, the EPA said it is reconsidering the scientific finding that greenhouse gases are a danger to public health. This comes as research shows average global temperatures in 2024 likely rose above a 1.5 degree Celsius threshold that for years has been a red line for climate change. Ali Rogin speaks with Michael Mann at the University of Pennsylvania to learn more.

Why we’re ‘perilously close’ to a global warming threshold

5m 57s

  • April 9, 2025 - PBS News Hour full episode: asset-mezzanine-16x9

    April 9, 2025 - PBS News Hour full episode

    S2025 E99 - 57m 46s

    Wednesday on the News Hour, as President Trump hits pause on many of his tariffs, we look at the global response and how the back and forth is affecting American business and consumers. How the trade wars could affect personal finances. Plus, Judy Woodruff goes underground to explore some of the little-known and sometimes life-saving work done by government employees who are now being fired.

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