Weather
Monsoons make deserts bloom in the US Southwest, but climate change is making these summer rainfalls more extreme and erratic
Lightning during a monsoon storm in southern Arizona, Saguaro National Park. Pete Gregoire, NOAA Diana Zamora-Reyes, University of Arizona and Christopher L. Castro, University of Arizona If you’ve never lived in or visited the U.S. Southwest, you might picture it as a desert that is always hot and dry. But this region experiences a monsoon