Greenland's vast ice sheet, covering 80% of the island and two miles thick, serves as the world's largest natural laboratory. By studying minerals and gases trapped in ice cores, glaciologists

Greenland's vast ice sheet, covering 80% of the island and two miles thick, serves as the world's largest natural laboratory. By studying minerals and gases trapped in ice cores, glaciologists unravel ancient mysteries—like past temperatures or the disappearance of the Norse—and gain critical insights into the future of climate change.

Journalist Jon Gertner explores this topic in his book, "The Ice at the End of the World." Purchase it here: https://amzn.to/2RtLtwY

For more on Greenland's ice and climate change, visit BigThink.com: https://bigthink.com/videos/greenlands-ice-a-trip-back-in-time-to-see-the-future-of-climate-change

Jon Bowermaster, a National Geographic grantee and "Ocean Hero," is a renowned writer, filmmaker, and adventurer. He has authored eleven books and directed over thirty documentaries, including

Jon Bowermaster, a National Geographic grantee and "Ocean Hero," is a renowned writer, filmmaker, and adventurer. He has authored eleven books and directed over thirty documentaries, including *Dear President Obama*. His global Oceans 8 project involved ten years of sea kayaking to report on ocean health.

Currently, Bowermaster leads the One Ocean Media Foundation and is a visiting lecturer at Bard College. His team's focus is the Hudson River Stories project, a series of short films examining environmental risks and hopes for the Hudson River Valley, the birthplace of the American environmental movement. He also hosts *The Green Radio Hour* podcast.

For more on the project, visit hudsonriverstories.com.

Sea level rise has already claimed islands like Holland Island in the Chesapeake Bay. Experts predict at least two feet of rise by 2100, even in best-case scenarios. This raises critical questions

Sea level rise has already claimed islands like Holland Island in the Chesapeake Bay. Experts predict at least two feet of rise by 2100, even in best-case scenarios. This raises critical questions about future displacement as flooding worsens and communities lose hope.

Journalist and historian Jon Gertner, a New York Times Magazine feature writer and author of The Ice at the End of the World, explores these pressing environmental and societal challenges.

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