Light pollution is out of control, say astronomers

Concern over global light pollution is growing. Astronomers are noticing its growing effect on astronomical observations, just as predicted in prior decades. Our artificial light, much of which is not strictly necessary, ...

Carbon dioxide emissions rising globally, but drop in China

The world's burning of coal, oil and natural gas this year is putting 1% more heat-trapping carbon dioxide in the air than last year, bad news for the fight against climate change but with an odd twist, according to scientists ...

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