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


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

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