NASA's Perseverance rover will scour Mars for signs of life

NASA's most advanced Mars rover, Perseverance, launches from Earth on July 30, on a mission to seek out signs of ancient microbial life on what was once a river delta three-and-a-half billion years ago.

Old permafrost carbon released

Using indicator molecules, a team of researchers headed by ETH Zurich demonstrates that carbon stored in the Arctic permafrost is being mobilised in Eurasian river basins.

NASA studies how arctic wildfires change the world

Wildfires in the Arctic often burn far away from populated areas, but their impacts are felt around the globe. From field and laboratory work to airborne campaigns and satellites, NASA is studying why boreal forests and tundra ...

How does soil store CO2?

Global CO2 emissions continue to riseā€”in 2012 alone, 35.7 billion tons of this greenhouse gas entered the atmosphere. Some of it is absorbed by the oceans, plants and soil. They provide a significant reservoir of carbon. ...

One crop, two ways, multiple benefits

Nitrogen fixation is one of the best examples of cooperation in nature. Soil microbes - naturally occurring bacteria in the soil - work with plants to pull nitrogen from the air. They turn the nitrogen into a form the plant ...

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