Water-Energy Team of the Climate Action Team (WET-CAT)

Recent News

  • Senate Bill 1425 (SB 1425) updates: the California Environmental Protection Agency (Cal EPA) held informational webinars on SB 1425 on May 11, 2017 and June 21, 2017
  • SB 1425 requires Cal EPA to contract with a qualified non-profit to develop a registry of greenhouse gas emissions resulting from the water-energy nexus using the best available data.
  • Cal EPA has drafted a Request for Proposal process and hopes to release the RFP for competitive bid shortly
  • For further information regarding SB 1425, please contact Ryan Radford, Climate Change Advisor, Ryan.Radford@calepa.ca.gov, 916-322-7179


The storage, transport and delivery of water for agricultural, residential, and commercial needs have significant energy and greenhouse gas implications. The Water-Energy Team of the Climate Action Team (WET-CAT) is tasked with coordinating efforts to reduce greenhouse gas (GHG) emissions associated with the energy intensity of water use, and with coordinating how such efforts to reduce the energy intensity of water use can help with efforts to address potential climate change impacts to water. Climate change risks to water include changes in precipitation and runoff impacting both water supply and water quality; diminished snowpack and natural water storage; increased hydrologic variability and extreme events including flood, drought and sea level rise resulting in salinity intrusion; changing water demand; potential for subsidence and reduced flows from intensified groundwater use; potential impacts to drinking water; wildfire and erosion impacting watersheds; thermal changes affecting aquatic habitat; impacts to hydroelectric power generation; potential increases in water-borne infectious diseases; and negative impacts on recreational opportunities and businesses. Some climate impacts are already unfolding in California.

The goal of reducing greenhouse gas emissions associated with the energy intensity of water use is part of a larger suite of water management objectives for the State of California.

WET-CAT focuses on information sharing to inform actions that help reduce the energy intensity of water use.

See the following for background on the water-energy nexus:

Opportunities for Greenhouse Gas Savings in the Water Sector

  • Water Use Efficiency
  • Recycled Water
  • Water Systems Efficiency
  • Stormwater Reuse
  • Renewable Development



John Blue,
Manager of Climate Programs, Cal EPA
(916) 445-9478

Current Roster of Participating Agencies

  • California Air Resources Board
  • California Environmental Protection Agency
  • California Department of Food and Agriculture
  • California Department of Public Health
  • California Department of Water Resources
  • California Public Utilities Commission
  • California Energy Commission
  • California Natural Resources Agency
  • Governor's Office of Planning and Research
  • State Water Resources Control Board
  • Strategic Growth Council

In addition to state entities listed above, regular WET-CAT participants also include, among others, utilities, federal agencies, non-profit organizations, and academic institutions.

Additional Information