Low clouds matter most for albedo and sunlight reflection. They bounce a lot of sunlight back to space. Last year, low cloud ...

United Nations cultural agency UNESCO has designated 26 new biosphere reserves across 21 countries to tackle biodiversity challenges and worsening climate change. Lake Bourget in the French ...

A comet is headed for Earth, and as it gets closer, it is likely to get brighter than most stars in the sky. We've already had a ton of great cosmic events this year, from the "Great North American ...

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