
The Rundown
- White House moves to cut funding for keystone federal climate change report and targets “unlawful” regulations.
- President Trump signs an order to relax showerhead water efficiency standards.
- Another order opposes state laws that impede his “energy dominance” vision and seeks to invalidate them.
- Yet another order requires agencies to put maximum 5-year expiration dates into existing energy and environmental laws.
- EPA says it will review new studies of health outcomes from fluoridated drinking water.
- Mexico says it will immediately release some water in the Rio Grande basin.
And lastly, federal forecasts indicate a down year for Colorado River runoff and the river’s already depleted reservoirs.
“These State laws and policies are fundamentally irreconcilable with my Administration’s objective to unleash American energy. They should not stand.” – Executive order from President Donald Trump that takes aim at state climate change laws that limit carbon-emitting energy production. The order instructs the attorney general to identify state laws and policies that the Justice Department believes illegally impede energy projects, and then attempt to halt implementation of the laws. The order mentions nearly every type of energy source except solar and wind.
The attorney general will prioritize investigating state laws that mention one of the administration’s many ideological bugbears: climate change; environmental, social, and governance initiatives; environmental justice; greenhouse gas emissions; and carbon taxes.
Any merit to all this? No, says Ted Lamm of UC Berkeley School of Law. Accusations of state overreach in this arena are a “mirage.”
By the Numbers
67 Percent of Average: Most probable runoff into Lake Powell this year from the Colorado River, according to a federal forecast. The report covers the April-July period. The down year is not good news for Lake Powell (33 percent full) or Lake Mead (34 percent).
4.1 Million Barrels Per Day: U.S. crude oil exports in 2024, a new annual record. Europe is now the biggest export market, after its decision in 2022 to ban Russian imports.
News Briefs
Rio Grande Water Negotiations
President Claudia Sheinbaum said Mexico would carry out “immediate delivery” of some water to the Rio Grande basin, an instance of trade politics influencing water policy, The Hill reports.
Under a 1944 treaty, Mexico is required over five years to deliver 1.75 million acre-feet from its side of the basin. It is far behind in the current cycle, even as deliveries have picked up this year in response to political pressure.
As of April 5, Mexico had delivered 512,604 acre-feet in this cycle.
Eliminating “Unlawful” Regulations
Recent Supreme Court decisions – Sackett (wetlands), Ohio (air emissions), Loper Bright Enterprises (deference to agency expertise), among others – have curtailed the executive branch’s regulatory powers. The White House now wants to institutionalize those rulings.
It will be action by subtraction, quickly.
Trump signed an executive order giving agencies 60 days to draw up a list of current “unlawful and potentially unlawful” regulations and devise a plan to repeal them.
The order directs agencies to repeal these rules without public notice and comment periods, which are generally required by law. The order claims that because these unnamed rules are unlawful, getting rid of them merits an exemption from notice and comment.
Pressure Politics
Ticking a favored topic, Trump also signed an order to rescind Biden-era water conservation regulations for certain high-end showerheads.
The rule restricted multi-nozzle showerheads to a total flow rate of 2.5 gallons per minute, which has been the federal standard for showerheads since 1992. The flow rate could not apply to each nozzle individually, which would multiply water use.
The Trump administration’s previous attempt to allow multi-nozzle showerheads to flow at higher rates was criticized by the plumbing industry. IAPMO, a trade group, argued that plumbing systems in new buildings, which are built for conservation, could be undersized if higher water volumes are allowed.
Sunset Provisions
Another order seeks to cut existing and future regulations in a different way: by adding “sunset provisions” that set an expiration date.
The order directs agencies to insert sunset provisions into bedrock environmental and energy laws such as the Energy Policy Act, Mining Act, Federal Power Act, and Endangered Species Act. The sunset dates are to be between one and five years after the provision is finalized. Regulations can be renewed “as many times as is appropriate, but never to a date more than 5 years in the future” if they are deemed worthy.
Studies and Reports
Cutting Climate Research Funding
The Trump administration is cutting funding for the federal government’s keystone report on climate change in the United States and its impacts, Politico reports.
The White House is cancelling a contract with the firm that oversees the U.S. Global Change Research Program, which conducts the National Climate Assessment. Ending the contract “forever severed” interagency climate change work, one senior official told Politico.
The National Climate Assessment is mandated by Congress, written by hundreds of academic and federal researchers, and summarizes the most recent science on climate change and its consequences for the country.
Coal Executive Order
To assist the dying U.S. coal industry, Trump signed a proclamation that gives coal-fired power plants a two-year reprieve from stricter air pollution standards.
U.S. coal production has fallen off a cliff, down more than half from its peak in 2008, according to government data. The reasons are structural and interrelated: higher production costs, stricter environmental controls, and cheaper competitors.
On the Radar
Fluoride
Lee Zeldin, the EPA administrator, said the agency will review scientific information about the health effects of fluoride as it considers potential regulatory action under the Safe Drinking Water Act.
The agency will produce “an updated health effects assessment for fluoride.”
A federal judge ruled last year that the agency must update its fluoride regulations due to new research into health risks.
Cybersecurity Drill
The EPA will host a nationwide drill next month to prepare drinking water utilities for a cyberattack.
Sign up for the May 27 drill here.
Federal Water Tap is a weekly digest spotting trends in U.S. government water policy. To get more water news, follow Circle of Blue on Twitter and sign up for our newsletter.

