It is no exaggeration to say that a mega-drought not seen in 500 years has descended on the seven Colorado River Basin states: Wyoming, Colorado, Utah, New Mexico, Nevada, Arizona and California. That’s what the science shows, and that’s what the region faces.
Come spring, the American West’s vast water reservoirs are supposed to fill with melting snow. However this year, as in recent years, the large reservoirs of Lake Mead and Lake Powell in the Colorado River basin have seen declining water levels — an ominous trend that a new study warns could signal a looming megadrought.
The origin of California’s largest lake is a well-known tale. In an attempt to turn the desert into lush farmland more than a century ago, humans tried — and temporarily but dramatically failed — to exert control over nature.
“The Salton Sea in south California was created in 1905 when spring flooding on the Colorado River breached a canal,” NASA’s website spells out. For 18 months, the most important river in the West flowed along what appeared to be a novel course through the Salton Basin, which lies 227 feet below sea level.
Being born from an engineering miscalculation on the part of the California Development Company means the Salton Sea has been written off as an “accident” in histories inked on many pages, ranging from The Washington Post to the Daily Mail.
But that framing is too simplistic, new research suggests, arguing that the sea’s formation was inevitable, regardless of the famous canal breach in 1905.
Since 2000, the West has been stricken by a dry spell so severe that it ranks among the biggest “megadroughts” of the past 1,200 years. But scientists have found that unlike the decades-long droughts of centuries ago, this one has been supercharged by humanity’s heating of the planet.
A dry April caused the expected spring-summer runoff into Lake Powell to plunge dramatically, with the water-flow forecast down the Colorado River declining as much in one month as Tucson Water customers use in 10 years.
A study recently published in the journal Science found that global warming and climate change have led to an emerging “megadrought” in the western U.S. – and that the drought we’ve been experiencing over the last 20 years is as bad or worse than any in 1,200 years.
The situation with COVID-19 continues to evolve and is having a significant impact on our customers and community. IID is monitoring developments closely, and as an essential services provider, is open and well prepared to continue serving all its customers.
On March 21, the IID Board of Directors adopted a resolution proclaiming a local emergency associated with COVID-19. This ensures the continuation of IID’s critical water and electric services under the California Emergency Services Act.
As part of our Pandemic Response plan, the district initiated a shelter-in-place program for critical employees. A small group of volunteer employees, who possess specialized skills to operate the district’s water and energy delivery systems, will remain at critical job sites 24-hours-a-day for three weeks working to ensure that our water and energy delivery systems remain operational while they stay healthy.
This extra step is part of how IID is working to carry out our mission to deliver energy to our customers in the Imperial and Coachella valleys. It also ensures the continued year-round delivery of Colorado River water from the All-American Canal to the Coachella Canal that supports farming operations in both valleys.
It’s the early 1990s, and Park Williams stands in the middle of Folsom Lake, at the base of the Sierra Nevada foothills in Northern California. He’s not walking on water; severe drought has exposed the lakebed.
“I remember being very impressed by the incredible variability of water in the West and how it’s very rare that we actually have just enough water,” said Williams, who went on to become a climate scientist at Columbia University. “It’s often the case there’s either too much or too little.”
Williams is the lead author on a report out this month in the journal Science detailing the extent of drought conditions in the American West.
A growing body of research shows that the Upper Colorado River Basin is growing warmer on average. In fact, the national hot spot centers on Western Colorado and much of the Southwest.
The people of California’s Imperial Valley can be as unforgiving as the region’s harsh desert climate. It’s been 16 years since Bruce Kuhn cast the fateful vote to transfer tens of billions of gallons of Colorado River water from the valley’s sprawling farms to thirsty coastal cities, reshaping water politics in California and across the West.
The Water News Network is San Diego County’s source for water news and information.
