The Environmental Protection Agency (EPA) has officially moved to repeal the landmark 2009 Endangerment Finding, a foundational scientific determination that identifies greenhouse gas emissions as a significant threat to public health and welfare. This administrative action, announced under the leadership of EPA Administrator Lee Zeldin, represents a fundamental shift in federal environmental policy and has triggered immediate calls for leadership change from prominent advocacy groups. Protect Our Winters (POW), a leading coalition representing the outdoor recreation community and professional athletes, issued a formal demand for Administrator Zeldin’s immediate resignation, citing a "dangerous new low" for the agency and an abandonment of its core mission to protect the environment and human health.
The repeal of the Endangerment Finding targets the legal and scientific framework that has, for over fifteen years, allowed the federal government to regulate carbon dioxide and other greenhouse gases under the Clean Air Act. By challenging the scientific consensus that these emissions drive climate change and exacerbate public health risks, the EPA has effectively signaled a retreat from federal climate oversight. Advocacy groups and environmental scientists warn that this move will weaken the legal basis for a wide array of protections, ranging from vehicle fuel economy standards to limits on power plant emissions.
The Scientific and Legal Foundation of the Endangerment Finding
To understand the magnitude of the current repeal, it is necessary to examine the origins of the Endangerment Finding. In 2007, the United States Supreme Court ruled in the case of Massachusetts v. EPA that greenhouse gases are considered air pollutants under the Clean Air Act. The Court mandated that the EPA determine whether these emissions contribute to climate change which, in turn, could be reasonably anticipated to endanger public health or welfare.
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 Endangerment Finding in December 2009. The finding concluded that the atmospheric concentrations of 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. Specifically, the agency cited increased risks of heat-related illness, respiratory issues due to increased ground-level ozone, and the intensification of extreme weather events such as floods, droughts, and wildfires.
By repealing this finding, the EPA is not merely changing a policy; it is attempting to strike down the scientific premise that necessitates climate regulation. Legal experts suggest that this move is intended to provide a pathway for the deregulation of the fossil fuel industry, removing the "duty to act" that the Endangerment Finding imposed on the agency.
Timeline of Federal Climate Policy Reversals
The repeal of the Endangerment Finding is the culmination of a rapid series of deregulatory actions initiated in early 2025. Since taking office, Administrator Zeldin has overseen an aggressive restructuring of agency priorities.
In January 2025, the EPA began a systematic review of existing clean air and clean water protections. This was followed by a series of executive directives aimed at streamlining permits for oil and gas infrastructure and reducing the "regulatory burden" on heavy industry. By February, the agency had announced plans to reconsider the "Social Cost of Carbon," a metric used to calculate the long-term economic damage caused by carbon emissions.
The announcement of the Endangerment Finding’s repeal marks the most significant step in this timeline. It follows a coordinated effort by the administration to prioritize short-term industrial interests over long-term ecological stability. Protect Our Winters and other critics argue that these actions are not isolated policy shifts but are part of a deliberate strategy to dismantle the tools used to address the climate crisis at a time when its impacts are becoming increasingly visible.
The American West and the "Snow Drought" of 2025
The call for Zeldin’s resignation comes amidst a period of significant environmental distress in the American West. Scientific measurements and satellite data from the early months of 2025 indicate that winter snowpack across much of the western United States has reached historically low levels. This phenomenon, frequently referred to by climatologists as a "snow drought," is characterized by precipitation falling as rain rather than snow due to unusually high winter temperatures.
Mountain snowpack serves as a critical natural reservoir for the region. As snow melts gradually throughout the spring and summer, it provides a steady supply of water to rivers and streams, which in turn sustains agriculture, supports hydropower generation, and maintains delicate aquatic ecosystems. In states like California, Colorado, and Utah, the snowpack accounts for a significant portion of the annual water supply.
The 2025 data suggests that water supplies will be severely tightened in the coming months. A thin snowpack leads to lower river levels, increased water temperatures, and a heightened risk of catastrophic wildfires as forests dry out earlier in the season. These tangible impacts are the direct result of the warming trends that the Endangerment Finding was designed to mitigate. POW argues that by ignoring these realities, the EPA is failing the millions of Americans who rely on stable winters for their livelihoods and safety.
Economic Implications for the "Outdoor State"
The economic stakes of the EPA’s current trajectory are substantial. The outdoor recreation economy, often referred to as the "Outdoor State," comprises approximately 181 million Americans who participate in outdoor activities annually. According to data from the Bureau of Economic Analysis (BEA), this sector contributes over $1.2 trillion to the U.S. economy and supports millions of jobs, particularly in rural and mountain communities.
The outdoor economy relies heavily on "stable winters"—predictable patterns of snowfall and cold temperatures that allow for skiing, snowboarding, ice fishing, and winter tourism. A reduction in snowpack directly correlates to shorter operating seasons for resorts and a decline in consumer spending at local businesses, including hotels, restaurants, and equipment retailers.
Furthermore, the broader impacts of climate change, such as increased wildfire smoke and degraded water quality, threaten summer recreation activities like hiking, camping, and fishing. By dismantling climate protections, the EPA is perceived as creating an existential threat to this $1.2 trillion industry. Tribal nations, which often have deep cultural and economic ties to natural resources, are also among the most vulnerable populations as water rights and land health are compromised by shifting climate patterns.
Responses from Stakeholders and Industry Groups
The repeal has elicited a polarized response across the political and industrial landscape. While environmental organizations have condemned the move, some industry groups have expressed support for what they characterize as "regulatory reform."
Representatives for fossil fuel interests have argued that the Endangerment Finding was an overreach of executive power that stifled economic growth and energy independence. They contend that the repeal will provide much-needed "regulatory certainty" for energy producers, allowing for increased investment in domestic oil and natural gas production.
Conversely, legal advocacy groups such as Earthjustice and the Sierra Club have signaled their intent to challenge the repeal in federal court. They argue that the EPA cannot simply ignore its own scientific record without providing a robust, science-based justification—a high bar to clear given the overwhelming consensus on climate change.
The call for Administrator Zeldin’s resignation by Protect Our Winters adds a high-profile voice to the opposition. POW’s membership includes influential professional athletes and business leaders who argue that Zeldin’s leadership has turned the EPA into an "active participant" in the dismantling of clean air and water protections. The organization asserts that an administrator who ignores the agency’s core mission and the scientific data supporting it is unfit to lead.
Broader Impact and Long-term Consequences
The implications of repealing the Endangerment Finding extend far beyond immediate policy changes. It sets a precedent that scientific findings can be overturned by political shifts, potentially undermining the role of science in federal decision-making for years to come.
On an international level, the move could weaken the United States’ position in global climate negotiations. The Endangerment Finding was a key piece of evidence used to demonstrate the U.S. commitment to reducing emissions under the Paris Agreement. A reversal could signal to the global community that the U.S. is no longer a reliable partner in addressing the global climate crisis.
Domestically, the repeal is expected to lead to a "patchwork" of environmental regulations. As the federal government retreats, individual states may move to implement their own, more stringent climate laws. This could lead to a fragmented regulatory environment that increases costs for businesses operating across state lines.
Ultimately, the debate over the Endangerment Finding and Lee Zeldin’s leadership reflects a deeper conflict over the role of the federal government in managing environmental risks. For the millions of Americans living with the consequences of "snow droughts," increased wildfires, and water scarcity, the EPA’s decision is viewed not as a policy correction, but as a retreat from the protection of public health and the preservation of the natural world. As the legal battles begin and the environmental impacts mount, the future of U.S. climate policy remains in a state of profound uncertainty.
