The Western U.S. is Locked in the Grips of the First Human-Caused Megadrought, Study FindsBreaking News
tags: climate change, environmental history, Drought
A vast region of the western United States, extending from California, Arizona and New Mexico north to Oregon and Idaho, is in the grips of the first climate change-induced megadrought observed in the past 1,200 years, a study shows. The finding means the phenomenon is no longer a threat for millions to worry about in the future, but is already here.
The megadrought has emerged while thirsty, expanding cities are on a collision course with the water demands of farmers and with environmental interests, posing nightmare scenarios for water managers in fast-growing states.
A megadrought is broadly defined as a severe drought that occurs across a broad region for a long duration, typically multiple decades.
Unlike historical megadroughts triggered by natural climate cycles, emissions of heat-trapping gases from human activities have contributed to the current one, the study finds. Warming temperatures and increasing evaporation, along with earlier spring snowmelt, have pushed the Southwest into its second-worst drought in more than a millennium of observations.
comments powered by Disqus
- The Real Reason the American Economy Boomed After World War II
- Florence Revives Medieval Plague-Era ‘Wine Windows’ for Contactless Service
- Tulane Canceled a Talk by the Author of an Acclaimed Anti-Racism Book After Students Said the Event Was 'Violent'
- Sunday Reading: Hiroshima
- More Than a Century Before the 19th Amendment, Women were Voting in New Jersey
- Black Americans Who Served in WWII Faced Segregation and Second-Class Roles
- Lincoln Library Cancels Exhibition Over Racial Sensitivity Concerns
- Nixon Did Call the Military on Protesters. He Just Covered It Up.
- Historians Pay Tribute: ‘Today We Live In John Hume’s Ireland, And Thank God For That’
- Let Us Drink in Public