Earth from Space: Santiago, Chile

Santiago lies in the center of Chile's most densely populated region, the Santiago Metropolitan Region, with a population around eight million, of which five million live in the city's urban area. Santiago is spread over ...

Glass microspheres aren't the answer for saving Arctic sea ice

A proposal to cover Arctic sea ice with layers of tiny hollow glass spheres about the thickness of one human hair would actually accelerate sea-ice loss and warm the climate rather than creating thick ice and lowering the ...

Arctic's peak ice cover has shrunk by an area larger than Egypt

Sea ice covered 5.64 million square miles of the Arctic Ocean at the ice's peak extent this year in early March. That's almost 400,000 square miles less than the median coverage level at other March peaks between 1981 and ...

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