Climate change is battering US water systems

The American Water Works Association estimates that roughly $2 trillion will be needed to update municipal water systems for contemporary conditions.

1 minute read

September 14, 2026, 9:00 AM PDT

By Zachary Whalen


Department of Water and Power workers at the site of a water main rupture on Sunset Boulevard in West Hollywood. There are six men in construction vests looking at the rupture, with a crane in the background.

67 million American utility customers are served by water utilities with high climate risk. | Elliott Cowand Jr

Climate change is piling additional stress on the U.S.’s already-strained water systems, leading to water system leaks, damaged utilities and lead contamination across the nation. 67 million American utility customers are served by water utilities with high climate risk: according to the American Water Works Association, between $2.1 and 2.4 trillion will be required between now and 2050 to redesign and update municipal water systems to prepare them for contemporary conditions.  

If utility companies cannot secure federal funding, and pass the cost along to consumers, it would increase drinking water bills by at least 126% according to the American Water Works Association. 

“Climate change has been particularly hard on water utilities. Bigger temperature swings, stronger floods and changes in groundwater levels mean expanding and contracting soil, shifting pipes and more water main breaks. Drought empties reservoirs and forces operators to tap alternative sources. Expanded periods of high heat strain equipment made to operate in cooler climates. More severe rain storms require expanded stormwater capacities. Rising sea levels threaten water sources and low-lying treatment plants with saltwater intrusion,” Patrick Sisson writes for Next City.

Thursday, September 10, 2026 in Bloomberg

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