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
- Boston Refused to Close Schools During the 1918 Flu. Then Children Began to Die
- Trump Won’t Win by Doubling-Down on his Racist Appeals but the Right’s Open Bigotry Comes at a Cost
- What to Stream: A Blazing Interview with Orson Welles By Richard Brody
- Trump’s Attack on the Postal Service Is a Threat to Democracy—and to Rural America
- Kamala Harris and the Growing Political Power of Black Women
- The Harvard Professor Who Told the World That Jesus Had a Wife (Review)
- For Black Suffragists, the Lens Was a Mighty Sword
- In Women’s Suffrage, a Spotlight for Unsung Pioneers
- A Powerful New Memorial To UVA’s Enslaved Workers Reclaims Lost Lives And Forgotten Narratives
- Unearthing New Histories of Black Appalachia (Review)