Scientists reveal the hidden costs of cobalt mining in DR Congo

In recent years, the demand for cobalt, a crucial component of rechargeable lithium-ion batteries for smartphones and electric cars, has been on the increase. Around 60 percent of the world's cobalt supply comes from the ...

Extracting clean fuel from sunlight

Securing enough energy to meet human needs is one of the greatest challenges society has ever faced. Previously reliable sources—oil, gas and coal—are degrading air quality, devastating land and ocean and altering the ...

Copper makes seed pods explode

Plants have evolved numerous strategies to spread their seeds widely. Some scatter their seeds to the wind, while others tempt animals and birds to eat their seed-filled fruits. And a few rare plants—such as the popping ...

It's time environmentalists talked about the population problem

In all the talk of tackling environmental problems such as climate change, the problem of population growth often escapes attention. Politicians don't like talking about it. By and large, neither do environmentalists—but ...

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