Peter Rayner

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Carbon dioxide flux over China, measured by NASA’s Orbiting Carbon Observatory-2 satellite. NASA

Satellites are giving us a commanding view of Earth’s carbon cycle

Pep Canadell, CSIRO; Alex Held, CSIRO; Cathy Trudinger, CSIRO; Peter Rayner, The University of Melbourne, and Vanessa Haverd, CSIRO

New data from a NASA satellite show in unprecedented detail the flow of carbon dioxide into the atmosphere. Future satellites should even be able to detect the signatures of individual power stations.
Forests and other land-based carbon stores held onto more carbon during colder historical climates. Miguel.v/Wikimedia Commons

Land carbon storage swelled in the Little Ice Age, which bodes ill for the future

Peter Rayner, The University of Melbourne; Cathy Trudinger, CSIRO; David Etheridge, CSIRO, and Mauro Rubino, Second University of Naples

When temperatures dipped between 1500 and 1750, the world’s landscapes responded by storing more carbon. Now, with temperatures climbing, it’s possible they will do the opposite and release even more.

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