Study Warns of Rising Water Costs Across U.S. Cities Due to Climate Change

NewsWK — New research indicates that household water costs could significantly increase in various American cities as a result of climate change. A study conducted by researchers from Stanford University and other institutions highlights the potential for water bills to nearly double due to stress on municipal water systems.

The study, recently published in the journal Nature Sustainability, specifically examined Santa Cruz, California. However, the findings suggest that many cities will face similar challenges, necessitating expensive upgrades to their water infrastructure due to the impacts of a hotter, drier climate. Jennifer Skerker, the lead author of the study, noted that without substantial government funding, the financial burden of new water transport systems, desalination plants, and sewage reuse systems will likely fall on consumers.

“This really pits water affordability against water reliability, when in reality we need both of these to have safe, accessible, and affordable water for everyone,” said Skerker.

The implications for low-income households are particularly concerning, as rising water rates could consume a larger portion of their budgets. Over the last two decades, water rates have risen at three times the rate of inflation, driven by infrastructure upgrades and maintenance needs.

As many Americans are already grappling with high utility costs—one in six households is reportedly behind on utility bills—water affordability has become an increasingly important topic. Skerker emphasized the need to include water costs in discussions about energy affordability, noting that families may face tough decisions about whether to pay for water, energy, groceries, or medical expenses.

Santa Cruz has already implemented various water conservation measures, reducing usage by nearly two-thirds over the past two decades. However, the study warns that in one of the driest scenarios, median water bills for the lowest-income residents could jump from approximately $60 to $111 per month by 2050. This could result in over one-third of households in Santa Cruz struggling to afford water.

While cities with larger reservoirs or interconnected systems may not see the same rapid rise in water costs, the research anticipates the emergence of “water affordability hotspots” nationwide as more regions face challenges in sourcing and treating sufficient drinking water. According to Skerker, cities require more assistance from state and federal governments to address these looming issues.