climate

A woman in a dark coat and pants stands on the deck of a boat, with a view of the ocean in the background.

What ancient sediments at the bottom of the ocean can teach us about climate change

Archives 2025, Global warming, Oceans, Slider Stories, Top Stories / By

By Rachel Duckett, Dec. 20, 2025 Columbia University researchers are using grains of sediment left behind on the ocean floor millions of years ago to track the movement of icebergs through the Southern Ocean’s “Iceberg Alley,” just east of the Drake Passage between the southern tip of South America and Antarctica. As icebergs broke off …

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Climate scientist wearing cap studies rock for clues about past climate change while conducting field research on Wyoming landscape.

Climate scientist Zander Roman reads the rocks

Global warming, Health and Environment, Slider Stories, Top Stories / By

By Kimberly Henrickson Dec. 10, 2025 Climate scientist Alexzander “Zander” Roman knows his rocks.  Roman, a Ph.D. candidate in Earth and climate sciences at the University of Maine, is hunting rocks for clues to construct a timeline of the Little Ice Age. The Little Ice Age is estimated to have lasted from the 1300s through …

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