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Scientists: The Arctic Was Sea-Ice-Free, 19°C Warmer 4 Million Years Ago -- And Yet Polar Bears Somehow Survived

Scientists: The Arctic Was Sea-Ice-Free, 19°C Warmer 4 Million Years Ago — And Yet Polar Bears Somehow Survived

“Whether polar bears are 350,000 years old or 6 million years old, unless we take action to curb greenhouse gas emissions, they face a future where the climate will continue to warm. And this warming will be unlike anything polar bears have survived before.”  —  Polar Bears International Image: NoTricksZone During the Pliocene, or from […]