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What Can Fossil Corals in the Cook Islands Teach Us About Global Sea Level Rise?
September 29, 2026

Scientists are studying fossil coral reefs in the Cook Islands to reconstruct sea levels during the Last Interglacial, and hoping to improve projections of future change.

Columbia Climate School Hosts City Leaders to Address Energy Affordability and Climate Action
September 29, 2026

Sustainability leaders from Ann Arbor, Atlanta and NYC shared the ways they are working at the local level to improve energy efficiency and reduce costs, while also reflecting on the challenges they face.

On Ancient Madagascar, Large Native Herbivores Paid the Price as Introduced Livestock Spread
September 25, 2026

New analyses of ancient cattle, sheep and goat bones suggest that the rapid spread of introduced livestock 1,200 years ago coincided with forest loss and population declines among large native herbivores.

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On Ancient Madagascar, Large Native Herbivores Paid the Price as Introduced Livestock Spread
September 25, 2026

New analyses of ancient cattle, sheep and goat bones suggest that the rapid spread of introduced livestock 1,200 years ago coincided with forest loss and population declines among large native herbivores.

Robot Sailboats Will Spend Five Years Measuring Carbon in the Southern Ocean
September 24, 2026

Led by researchers at NOAA and Columbia University, the Constraining Ocean Carbon with Optimized Observing (COCO2) project will use uncrewed surface vehicles to reduce uncertainty in estimates of the ocean carbon sink.

New Report: Ocean Carbon Removal Shows Promise, But Big Questions Remain
September 21, 2026

Marine carbon dioxide removal could support climate action but faces major scientific, technical and governance challenges, according to a National Academies of Sciences, Engineering, and Medicine report.

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