Related topics: plants · climate change · nitrogen · atmosphere · carbon

Scientists help recover gases from moon rock time capsule

Scientists from Washington University in St. Louis are helping to recover gases from a container of lunar soil that astronauts collected and sealed under vacuum on the surface of the moon in 1972. The effort is part of NASA's ...

Increased grazing pressure threatens the most arid rangelands

A new study published in Science reports results from the first-ever global field assessment of the ecological impacts of grazing in drylands. An international research team has found that grazing can have positive effects ...

Search for clues may explain collapse of ancient city in Mexico

Built more than a thousand years before the Aztec arrived in central Mexico, Teotihuacan was once one of the largest cities in the world. Its stone temples, comparable in size to Egypt's pyramids, still draw fascinated visitors, ...

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