The Environmental Protection Agency under President Donald Trump has served notice it wants to back away from at least 30 major rules that seek to protect air and water and reduce emissions that cause climate change. An Associated Press analysis found that the targeted rules are estimated to save at least $275 billion a year and more than 30,000 lives annually. The analysis was built on regulatory impact reports prepared by the EPA itself to factor in things such as reduced illnesses and deaths, as well as how much it would cost companies to comply with the rules. AP also worked with research by the Environmental Protection Network of former agency employees. The analysis found about 10,000 American lives would be saved as the current rules cut traditional pollutants such as soot, smog and heavy metals like mercury and lead. Another AP analysis calculated that doing away with the rules would mean rising greenhouse gas emissions that would in turn drive deadly heat that would account for 25,000 more deaths each year around the world. That calculation also relied on a think-tank report and scientific studies that calculate deaths per ton of emissions. Some of the rules have been in place for years, while others were written under President Joe Biden and have not yet taken effect because of court challenges or because they are designed to kick in during later years. One example is a proposed update to existing EPA emissions standards for vehicles that's aimed at jump-starting electric cars. It's supposed to take effect for 2027 model years. The EPA's own analysis estimated net annual benefits of more than $100 billion a year. Another rule sets the level of traditional pollutants allowable in air that's deemed clean. The Clean Air Act requires that it be updated every few years. Public health and experts say one type of traditional pollution, particulate matter —better known as soot — is the most deadly in America, with severe consequences when reaching a person's lungs. In 2024, the Biden administration cut by 25% the amount of particulate matter that states are allowed to emit into the air. The EPA calculated a net benefit from that rule of as much as $46 billion a year, and the prevention of 4,500 premature deaths and 800,000 asthma incidents annually. The Trump administration has not said how far the targeted rules would be rolled back. And EPA Administrator Lee Zeldin has vowed to follow federal law. Experts say the targeted rules were the product of rigorous impact analyses that got close scrutiny from the EPA and other federal agencies.