CO2

The Arctic hasn’t been this warm for 3 million years – and that foreshadows big changes for the rest of the planet

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arctic

Ice floe drifting in Svalbard, Norway. Sven-Erik Arndt/Arterra/Universal Images Group via Getty Images Julie Brigham-Grette, University of Massachusetts Amherst and Steve Petsch, University of Massachusetts Amherst Every year, sea ice cover in the Arctic Ocean shrinks to a low point in mid-September. This year it measures just 1.44 million square miles (3.74 million square kilometers) … Read more

High CO2 and Global Greening 23 million years ago

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Mummified leaves and global greening

Published on Aug 23, 2020 within “Climate of the Past”, an Open Access journal of European Goesciences Union, is a new paper titled “Elevated CO2, increased leaf-level productivity, and water-use efficiency during the early Miocene“. It describes how increased levels of CO2 led to Global Greening. You might immediately wonder “How can they actually determine … Read more