The oldest rocks on Earth may have formed in an apocalyptically fiery barrage of meteorites that melted the planet’s crust more than four billion years ago, geologists report. Analysis of four-billion-year-old silica-rich rocks from the Acasta River in Canada by researchers from Western Australia’s Curtin […]
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Researchers have updated their predictions for what melting ice sheets will do to the planet within the next century. By 2100, the shrinking Antarctic and Greenland ice sheets will raise sea levels by nearly 10 inches. The influx of water will disrupt an ocean current vital […]
Since at least the early ’80s, the world has been getting greener. Satellite data show plants cover more and more land every year. That’s happening even as deforestation increases in the tropics. Scientists have attributed some of the greening to climate change and an effect […]