Skip to main content
Back to Show
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.

Support Provided By
Season
April 24, 2025 - PBS News Hour full episode
57:46
April 24, 2025 - PBS News Hour full episode
April 23, 2025 - PBS News Hour full episode
57:46
April 23, 2025 - PBS News Hour full episode
April 22, 2025 - PBS News Hour full episode
56:44
April 22, 2025 - PBS News Hour full episode
April 21, 2025 - PBS News Hour full episode
56:44
April 21, 2025 - PBS News Hour full episode
April 20, 2025 - PBS News Weekend full episode
26:45
April 20, 2025 - PBS News Weekend full episode
April 19, 2025 - PBS News Weekend full episode
26:44
April 19, 2025 - PBS News Weekend full episode
April 18, 2025 - PBS News Hour full episode
57:46
April 18, 2025 - PBS News Hour full episode
April 17, 2025 - PBS News Hour full episode
57:46
April 17, 2025 - PBS News Hour full episode
April 16, 2025 - PBS News Hour full episode
57:46
April 16, 2025 - PBS News Hour full episode
April 15, 2025 - PBS News Hour full episode
57:46
April 15, 2025 - PBS News Hour full episode
April 14, 2025 - PBS News Hour full episode
57:46
April 14, 2025 - PBS News Hour full episode
April 13, 2025 - PBS News Weekend full episode
26:44
April 13, 2025 - PBS News Weekend full episode
Active loading indicator