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Catastrophic tipping point in Greenland reached as crystal blue lakes turn brown, belch out carbon dioxide
Record heat and rain turned thousands of Greenland lakes brown in 2022 as they hit a tipping point and began emitting carbon ...
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Curiosity Rover Uncovers 3.7-Billion-Year-Old Ripples That Suggest Mars Once Had Ice-Free Lakes
In the dusty, rust-colored expanse of Gale Crater on Mars, NASA’s Curiosity rover has uncovered a ghostly echo of a long-lost world. Etched into the rock are tiny undulations — ripples frozen in time, ...