Climate Change is Negatively Affecting the Colorado River


Via Flickr

Josie Taylor | October 18, 2021

States in the Colorado River basin, along with tribal leaders told a congressional panel Friday that states in the Colorado River Basin are adjusting to the reality that their rights outstrip the available water by nearly one-third. Climate change will likely make this situation worse as time goes on.

Representatives from the seven Western states — Arizona, Colorado, Nevada, New Mexico, California, Utah and Wyoming — that depend on the river for drinking water and irrigation said at a U.S. House Natural Resources subcommittee hearing that they are preparing for a future where the river and their needs and legal entitelments do not match. 

State officials and lawmakers emphasized how serious the situation was, but did offer many solutions beyond general appeals to conservation and collaboration.

States and tribes in the basin are legally entitled to 15 million acre-feet of water per year, with another 1.5 million going to Mexico, but only about 12.4 million has flowed in an average year over the last two decades.

The deficit is the result of a years-long drought that was tied to climate change, U.S. Rep. Jared Huffman, a California Democrat who chairs the House Subcommittee on Water, Oceans and Wildlife, and others said.

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