#ColoradoRiver Basin ranks among the world’s most #water-stressed regions, analysis finds — The Los Angeles Times #COriver #aridification

Screenshot of the Aqueduct World Water Risk Analysis website August 16, 2023.

Click the link to read the article on The Los Angeles Times website (Ian James). Here’s an excerpt:

The analysis by researchers with the World Resources Institute found that all seven states that rely on the Colorado River face high or extremely high water stress. Arizona ranked first for the most severe water stress in the country, followed by New Mexico and Colorado, while California ranked fifth.

“When I put the results on a map, the first thing I saw was the Colorado River Basin,” said Samantha Kuzma, the nonprofit group’s data lead for the assessment, called the Aqueduct Water Risk Atlas.

The analysis found that 25 countries, with about one-fourth of the world’s population, are exposed to extremely high water stress. Those countries include Bahrain, Cyprus, Lebanon, Israel, Chile, Jordan, Greece and Tunisia, among others. The United States as a whole doesn’t meet the threshold to be considered a country with high water stress.

“But if you were only to count the Colorado River Basin, it would be one of the most water-stressed countries in the world,” Kuzma said. “It ranks at the top of the list with the other extremely high countries.”

But the analysis highlights warnings from experts who say that even though the Colorado River has benefited from one of the wettest winters in years, the long-term gap between heavy demands and limited supply will require significant reductions in water use. Lake Mead and Lake Powell, the two largest reservoirs in the country, remain at historically low levels. Even with the rise in water levels this year, the reservoirs are at 36% of capacity.

“The problem on the Colorado River does not get erased with one wet year. And in fact, climate change pretty well ensures that this problem continues,” said Jennifer Pitt, director of the National Audubon Society’s Colorado River program. “While there is a temporary reprieve, and while there will always be wet years and dry years, the overall trend is warmer, drier, and less water availability.”

Colorado River “Beginnings”. Photo: Brent Gardner-Smith/Aspen Journalism

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