The Clean Air Act has been a crucial piece of legislation in the United States for over five decades, significantly improving public health and saving lives. However, recent changes in how the U.S. Environmental Protection Agency (EPA) enforces the act have raised concerns among experts about the potential negative impacts on air quality and public health.
The EPA has announced that it will no longer consider the economic benefits of some regulations under the Clean Air Act, focusing solely on the costs to industry. This change means that the agency will not calculate the dollar value of lives saved or other health benefits resulting from limits on harmful pollutants like fine particulate matter (PM2.5) or ozone emissions. This decision has raised alarms among environmental law experts, who predict that Americans will experience poorer air quality and increased health problems as a result.
PM2.5 particles are tiny enough to enter the bloodstream and have been linked to various health issues, including diabetes, obesity, dementia, cancer, low birth weight, and asthma. Ozone, a key component of smog, is particularly harmful to individuals with asthma and other respiratory conditions, especially children. The Clean Air Act was enacted to address these widespread health effects of air pollution, emphasizing the importance of regulating pollutants even in the face of scientific uncertainty.
Experts argue that the benefits of the Clean Air Act far outweigh the costs of implementation. Studies have shown that regulations under the act have resulted in significant health improvements and saved lives. For example, a 2016 analysis found that Americans had gained 336 million life-years since the amendments to the act in 1970. The EPA estimated in 2011 that updates made in 1990 would prevent hundreds of thousands of premature deaths, cases of bronchitis, emergency room visits, and lost workdays by 2020.
While estimating costs is inherently uncertain, past analyses have shown that the EPA often overestimates these costs. Critics of the new EPA policy anticipate legal challenges to the decision, as it could have far-reaching consequences on public health and the environment. The policy change is expected to impact proposals related to greenhouse gas emissions and pollutants like nitrogen dioxide and sulfur dioxide from gas-burning power plants.
Overall, the decision to exclude the economic benefits of regulations under the Clean Air Act raises concerns about the future of air quality and public health in the United States. Experts emphasize the importance of considering both the costs and benefits of environmental regulations to ensure the well-being of the population and the environment. Data centers are increasingly turning to plants to meet their growing power needs. These plants are in high demand due to their ability to fuel the considerable energy requirements of these facilities. The Environmental Protection Agency (EPA) is mandated to provide a rationale for its decisions and the data it relies on when making such determinations. According to Heinzerling, this transparency is crucial in ensuring that the agency’s actions are well-informed and based on sound scientific evidence.
In response to inquiries from Scientific American, an EPA spokesperson stated that the agency is currently evaluating the effects of PM2.5 and ozone on human health. However, the spokesperson clarified that the agency will not be assigning a monetary value to these impacts at this time. The EPA remains steadfast in its commitment to safeguarding human health and the environment, as outlined in its core mission.
The spokesperson also highlighted that the previous administration did not assess the health benefits associated with certain regulations under the Clean Air Act, including those related to PM2.5. While past administrations may have faced challenges in quantifying the benefits of certain regulations, Rothschild emphasizes that the health benefits of reducing particulate matter and ozone are relatively straightforward to measure and monetize.
Rothschild expresses disappointment in the EPA’s decision not to prioritize public health in its evaluations. She believes that quantifying the health benefits of reducing pollution should be a top priority for the agency to ensure that regulations are effective in protecting the well-being of the population.
In conclusion, the demand for plants in data centers highlights the importance of sustainable energy sources in meeting the power needs of modern facilities. The EPA’s commitment to evaluating the impact of pollutants on human health is crucial in informing regulatory decisions that promote public well-being. By prioritizing the quantification of health benefits, the agency can ensure that its actions are guided by the best interests of the public.

