John Allen, Central Michigan University The deadly tornado outbreak that tore through communities from Arkansas to Illinois on the night of Dec. 10-11, 2021, was so unusual in its duration and strength, particularly for December, that a lot of people including the U.S. president are asking what role climate change might have played – and whether tornadoes will become more common in a warming world. … Continue reading Tornadoes and climate change: What a warming world means for deadly twisters and the type of storms that spawn them

Matthew Druckenmiller, University of Colorado Boulder; Rick Thoman, University of Alaska Fairbanks, and Twila Moon, University of Colorado Boulder The Arctic has long been portrayed as a distant end-of-the-Earth place, disconnected from everyday common experience. But as the planet rapidly warms, what happens in this icy region, where temperatures are rising twice as fast as the rest of the globe, increasingly affects lives around the … Continue reading 2021 Arctic Report Card reveals a (human) story of cascading disruptions, extreme events and global connections