Why the Pyrenees' mountain lakes are turning green

I first set foot in the Pyrenees in 2006. Two years later, I began a large-scale survey of mountain lakes and amphibian populations: from east to west, I covered more than 100 mountain lakes located in the eastern Pyrenees ...

Study sheds light on how Earth cycles its fossil carbon

As the primary element of life on our planet, carbon is constantly journeying from living creatures down into the Earth's crust and back up into the atmosphere, but until recently, quantifying this journey was virtually impossible.

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