Earth/Environment
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Tooth fossil suggests aquatic and land dinosaurs fought savage battles for supremacy
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Riding the heat waves: Report says human-induced climate change to blame
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Newly discovered poison dart frog with strange call needs conservation plan
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Central California experiences more than 500 weak earthquakes. Should you worry?
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World's grassland ecosystem is under threat... from trees
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Obama’s expansion of marine sanctuary makes it world’s largest
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Switching to natural gas will increase, not lower, greenhouse gas emissions: Study
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Restoring the Great Lakes: EPA’s plan to improve world’s largest freshwater source
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UN vows to end deforestation by 2030: Here's how
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U.N. Climate Summit: U.S., other countries pledge to reduce deforestation
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West coast warming? Blame it on Pacific winds, not humans
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Shape-shifting UFO? Clouds? Nope, just migrating Monarch butterflies showing up on radar
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