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Antarctica Once Had Wildfires: Tiny Charcoal Fragments Reveal a Burning Forest Near the South Pole

Forest fires and Antarctica are hard to picture together. Today the continent lies under a thick sheet of ice, and the cold preserves almost everything that falls on it. Around 90 million years ago, in the Cretaceous (the last period of the age of dinosaurs), the scene was very different. The planet was going through […]

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Water access becomes a top election concern for Arizona voters

For many Arizona voters, the top concern heading into the midterms isn't inflation, immigration or education. It's water. With the state gripped by prolonged drought, candidates are facing growing questions about how to secure its water future. Stephanie Sy reports for our series, Tipping Point.

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