Back to Show
PBS News Hour
Uncovering the history of Earth’s climate
To understand the history of climate change, researchers are digging underneath the ocean floor where organisms and plants have accumulated in sediment over millennia. Maureen Raymo studies this science of paleoclimatology using a vast collection of materials at Columbia University’s Lamont-Doherty Earth Observatory. NewsHour Weekend's Hari Sreenivasan reports.
Support Provided By

56:45
September 15, 2025 - PBS News Hour full episode

26:45
September 14, 2025 - PBS News Weekend full episode

26:45
September 13, 2025 - PBS News Weekend full episode

57:46
September 12, 2025 - PBS News Hour full episode

57:46
September 11, 2025 - PBS News Hour full episode

57:46
September 10, 2025 - PBS News Hour full episode

57:46
September 9, 2025 - PBS News Hour full episode

56:44
September 8, 2025 - PBS News Hour full episode

26:45
September 7, 2025 - PBS News Weekend full episode
26:45
September 6, 2025 - PBS News Weekend full episode

57:46
September 5, 2025 - PBS News Hour full episode

57:46
September 4, 2025 - PBS News Hour full episode