Making sense of science
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All life on Earth exists on a thin layer that surrounds the planet. To better understand this so-called "critical zone," researchers are setting up state-of-the-art instruments and creating open-...

The Earth hasn't always been the blue, hospitable planet it is today. On at least three occasions our planet was completely covered with ice. How did the Earth get into this state and, above all...
Common ownership of a resource causes its demise. This was what a biologist had concluded in a 1968 paper published in Science. His article, "The Tragedy of the Commons" has shaped the...