Is all cholesterol harmful? Does being slim protect you from its damage? British cardiologist Oliver Guttman busts five …
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For the first time since precise measurements began, the average monthly concentration of carbon dioxide in the atmosphere has topped 430 parts per million (ppm). Researchers at the Scripps Institution…
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Alexandria, the city where Cleopatra was born, is now at risk of disappearing beneath the sea. A new study finds that rising sea levels driven by climate change are causing…
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Was the air on Earth millions of years ago the same as it is today? Only eyewitnesses can answer that question. And believe it or not, those eyewitnesses have been…
