Climate change is changing our assumptions about water resources. As climate change warms the atmosphere, altering the hydrologic cycle, changes to the amount, timing, form, and intensity of precipitation will continue. Other expected changes include the flow of water in watersheds, as well as the quality of aquatic and marine environments. These impacts are likely to affect the programs designed to protect water quality, public health, and safety.

EPA is working with state, tribal, and local governments, as well as communities, to build resiliency and develop tools to respond to climate change. Learn about the steps EPA is taking to address the impacts of climate change in the water sector.