Connecticut Groups Warn of Air Quality Damage After EPA Cuts Rules

The Environmental Protection Agency recently removed key rules that had protected air quality for almost twenty years. One rule, the 2009 endangerment finding, had helped set limits on greenhouse gases from cars and engines. The new decision also rolls back standards that limit pollution from coal‑powered plants, especially heavy metals like mercury. Environmental groups in Connecticut say these changes will hurt public health and the environment. The endangerment finding was a cornerstone of the Clean Air Act. It declared that gases such as carbon dioxide, methane and hydrofluorocarbons threaten people’s health. By removing it, the EPA has also dropped incentives that encouraged cars to use start‑stop technology and other emissions‑reducing features. The agency claims it is restoring “consumer choice” and cutting costs, but critics argue the science shows climate change is driven by fossil fuels. After the February 12 decision, many organizations—including the American Public Health Association, Sierra Club and Environmental Defense Fund—filed a lawsuit to stop the rollback. Connecticut groups like Save the Sound also voiced strong opposition, noting that most scientists agree human activities are the main cause of global warming. They cited a recent report showing climate‑related costs in the U. S. hit $955 billion between April 2024 and April 2025.

The EPA’s February 20 rollback targets coal‑burning power plants. It removes the Mercury and Air Toxics Standards that had limited emissions of mercury, lead and other hazardous pollutants. Connecticut’s Department of Energy and Environmental Protection warned that higher mercury levels can harm soil, water and air. The state’s health commissioner highlighted risks to babies, children and pregnant people from increased exposure. Connecticut has long faced climate challenges. A 2024 report noted rising temperatures, more heat days and intense rainfall events. Former Governor Malloy called the state a “tailpipe” for pollution drifting in from other states. Despite progress, the state still lags behind its 2030 greenhouse gas reduction goal. Sierra Club’s state director, Samantha Dynowsky, said the federal rollback forces Connecticut to step up its own regulations. She urged the state to maintain strong emissions standards for vehicles and power plants, warning that weaker rules could worsen asthma and other health problems. Dynowsky also warned of the broader threat from climate change, noting that hotter temperatures and severe storms could cause loss of life. Connecticut’s own emissions inventory shows a slight increase in 2023, but overall levels remain below pre‑pandemic numbers. The state’s clean energy laws still require vehicle inspections and other measures to limit pollution. Environmental groups argue that without federal support, the state must rely on its own laws to protect air quality and public health.

Actions