Arizona's water troubles show how climate change is reshaping the West
Jay Famiglietti moved to Arizona this year after a career using satellites to study how the worst drought in a millennium was sapping groundwater beneath the American West.
He has documented that the decline of groundwater in Californias Central Valley accelerated dramatically in recent years, and that states along the Colorado River were losing their aquifers far faster than the more visible shriveling of the nations largest reservoirs.
It was not a satellite but an airplane, however, that was on Famigliettis mind as he picked up his wife at the airport earlier this year: a charter flight of people arriving in Phoenix as part of a major expansion of Taiwan Semiconductor Manufacturing Co., one of Arizonas premier economic development jewels. This symbol of Arizonas future brought home the stakes of this moment.
In one of the fastest-growing metropolitan areas in the country, its a boom time water-intensive microchip companies and data centers moving in; tens of thousands of houses spreading deep into the desert. But it is also a time of crisis: Climate change is drying up the American West and putting fundamental resources at ever greater risk.
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