The United States Environmental Protection Agency (EPA) has officially repealed the 2009 Endangerment Finding, a move that strips the federal government of its primary scientific and legal justification for regulating greenhouse gas emissions. This administrative action represents a fundamental shift in American environmental policy, prompting immediate and sharp criticism from scientific communities, environmental advocacy groups, and the outdoor recreation industry. In response to this decision, the advocacy organization Protect Our Winters (POW) has formally called for the immediate resignation of EPA Administrator Lee Zeldin, citing a dereliction of the agency’s core mission to protect human health and the environment.
The Endangerment Finding, established under the Clean Air Act, is the foundational scientific determination that six key greenhouse gases—carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride—threaten the public health and welfare of current and future generations. By repealing this finding, the EPA has effectively signaled that it will no longer treat climate change as a regulatory priority, potentially paralyzing the federal government’s ability to enforce clean air and water standards linked to carbon pollution.
The Scientific and Legal Significance of the Endangerment Finding
To understand the magnitude of the repeal, one must look back at the legal history that necessitated the Endangerment Finding. In the landmark 2007 Supreme Court case Massachusetts v. EPA, the Court ruled that greenhouse gases fit the definition of "air pollutants" under the Clean Air Act. The Court mandated that the EPA determine whether these emissions contributed to climate change which could reasonably be anticipated to endanger public health or welfare.
In 2009, following an exhaustive review of peer-reviewed science from the Intergovernmental Panel on Climate Change (IPCC) and the U.S. Global Change Research Program, the EPA issued the finding. It concluded that the atmospheric concentrations of greenhouse gases constitute a threat. This finding was the "legal trigger" that allowed for the creation of tailpipe emission standards for vehicles, methane capture requirements for oil and gas operations, and carbon limits for power plants. Without this scientific backbone, the legal architecture of American climate policy faces a systemic collapse, as there is no longer a formal administrative recognition of the harm caused by carbon emissions.
A Chronology of Deregulation: January 2025 to Present
The repeal of the Endangerment Finding is viewed by many analysts as the culmination of a rapid deregulatory agenda initiated at the start of 2025. Since the transition of the EPA leadership to Administrator Lee Zeldin, the agency has moved with unprecedented speed to undo decades of environmental safeguards.
In early 2025, the agency began the process of revisiting the "Social Cost of Carbon," a metric used to justify the costs of environmental regulations by weighing them against the long-term economic damages of climate change. By lowering this metric to near zero, the administration effectively made it impossible for new regulations to pass a cost-benefit analysis. Following this, the EPA issued a series of memos indicating a shift in enforcement priorities, moving away from federal oversight of industrial emissions and toward a "state-led" model that critics argue lacks the resources and authority to manage cross-border pollution.
The repeal announced today is the most significant of these actions. It follows months of closed-door meetings with fossil fuel industry stakeholders and a systematic sidelining of the agency’s career scientists. The move has been characterized by Protect Our Winters as part of a coordinated effort to dismantle the tools designed to ensure clean water, clean air, and a stable climate.
The Crisis of the "Snow Drought" in the American West
The policy shift at the EPA comes at a moment of acute environmental crisis in the American West. Scientific measurements and satellite telemetry data from the early months of 2025 indicate that winter snowpack across the Sierra Nevada, the Cascades, and the Rocky Mountains has fallen to historically low levels. Meteorologists have termed this phenomenon a "snow drought," driven not necessarily by a lack of total precipitation, but by record-high winter temperatures.
Data from the National Resources Conservation Service (NRCS) shows that in several key basins, snow water equivalent (SWE) is currently at less than 40% of the median historical average for this time of year. Because temperatures are remaining above freezing at higher elevations, precipitation that would normally accumulate as snow is instead falling as rain. This has immediate and devastating consequences for the hydrological cycle of the region.
Mountain snowpack serves as a natural reservoir, storing water in solid form during the winter and releasing it slowly through the spring and summer. This gradual melt feeds the rivers and streams that sustain the Western United States. When this "water tower" fails, the entire ecosystem is thrown out of balance.
Economic Implications for the Outdoor State
The outdoor recreation economy, often referred to as the "Outdoor State," represents a significant pillar of the American economy. According to the Bureau of Economic Analysis (BEA), the outdoor recreation industry contributes approximately $1.2 trillion to the U.S. Gross Domestic Product (GDP) and supports nearly 5 million jobs. This sector encompasses everything from skiing and snowboarding to fishing, hunting, hiking, and boating.
The repeal of the Endangerment Finding and the resulting lack of climate action pose an existential threat to this economy. For the 181 million Americans who engage in outdoor recreation, the degradation of natural spaces is not a distant concern but a current reality.
- Winter Tourism: The "snow drought" has already led to shortened seasons for ski resorts, resulting in millions of dollars in lost revenue for mountain towns and rural communities.
- Agriculture: Farmers downstream from the mountains rely on the predictable melt of the snowpack for irrigation. Tightened water supplies lead to lower crop yields and increased food prices.
- Hydropower: Many Western states rely on hydroelectric dams for a significant portion of their carbon-free energy. Low snowpack leads to reduced river flows, which in turn diminishes the capacity for power generation.
- Wildfire Risk: A thin snowpack means that forests dry out earlier in the year. This extends the wildfire season and increases the intensity of burns, threatening property, air quality, and human life.
Statements and Reactions: The Call for Resignation
Protect Our Winters, representing a coalition of professional athletes, scientists, and business leaders, has been vocal in its condemnation of Administrator Zeldin. In their formal statement, the organization argued that the EPA has transitioned from a protective body to an "active participant" in the dismantling of clean air and water protections in service of the fossil fuel industry.
"An EPA that ignores science and dismantles the tools designed to protect public health and the environment cannot fulfill its mission," the organization stated. The demand for Zeldin’s resignation is based on the premise that his leadership has overseen a systematic unraveling of protections while climate impacts mount.
While the administration has framed the repeal as a necessary step to reduce "regulatory overreach" and spur domestic energy production, the reaction from the legal and scientific community has been largely negative. Legal experts anticipate a wave of litigation from state attorneys general, particularly from a coalition of Western and Northeastern states that have historically led on climate issues. These states are expected to argue that the repeal is "arbitrary and capricious," a legal standard under the Administrative Procedure Act that requires agencies to provide a reasoned explanation for changing long-standing policies.
Fact-Based Analysis of Future Implications
The repeal of the Endangerment Finding sets a dangerous precedent for the role of science in federal governance. By dismissing the foundational link between greenhouse gas emissions and public endangerment, the EPA is effectively operating in a vacuum that ignores current environmental data.
The long-term implications are twofold:
First, the United States risks losing its competitive edge in the global transition to a clean energy economy. As other nations implement carbon pricing and stringent emission standards, the U.S. may find its industries disadvantaged by a lack of clear federal guidance and the eventual imposition of carbon border adjustments by trading partners.
Second, the public health costs are likely to rise. Greenhouse gas emissions are often co-emitted with other harmful pollutants like particulate matter and nitrogen oxides. By weakening the authority to regulate carbon, the EPA also weakens the framework for addressing the broader air quality issues that contribute to respiratory illnesses, cardiovascular disease, and premature death in vulnerable communities, including Tribal nations and rural areas.
The "snow drought" of 2025 is a physical manifestation of the science that the Endangerment Finding was designed to address. As water supplies tighten and the $1.2 trillion outdoor economy faces unprecedented instability, the disconnect between administrative policy and environmental reality has reached a breaking point. The call for Lee Zeldin’s resignation marks a significant escalation in the ongoing conflict over the future of American environmental stewardship. Without a scientific basis for regulation, the tools available to protect the planet’s most vital resources—clean air, reliable water, and stable winters—remain profoundly compromised.
