For a two-year period, an extreme drought across Colorado and much of the West dried farmers’ fields, lowered water levels in reservoirs, fueled extreme wildfires and left streams dangerously low. Historically, an exceptional drought like the one that plagued the Western U.S. from 2020 to 2022 happened less than once every 1,000 years. But warmer temperatures caused by climate change could make similar megadroughts occur once every six years by the end of the century if humans continue business as usual, according to research published earlier this month in the journal Science Advances. “The droughts of today and the droughts of the future are not going to look like the droughts of the past,” said Joel Lisonbee, a scientist with the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder working at the National Oceanic and Atmospheric Administration and the National Integrated Drought Information System. He and a team of other researchers with UCLA and NOAA wanted to know whether the megadrought that plagued the West from 2000 to 2022 was a natural variation in weather or fueled by climate change.