Study declares waste-to-energy plants a low health risk

As China rapidly urbanizes, turning waste into energy has become a key way to handle growing trash volumes and reduce landfill use, while also creating power. Yet, concerns about the pollution from these plants and its health ...

'Irreplaceable' Colombian bird collection at risk

Under a cracked and leaky ceiling, Andres Cuervo works on a colorful, dead hummingbird for the ornithological collection of the National University of Colombia, the country with more bird species than any other.

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