Previously Considered Safe – Low Levels of Air Pollution Much Deadlier Than Scientists Thought
Air pollution refers to the presence of harmful substances, such as gases, particulates, and biological molecules, in the Earth’s atmosphere. Air pollution can have serious negative impacts on human health, as well as the environment.
Related Knowledge Center: Air emissions
More than 30 years after the last major update of the Clean Air Act, the U.S. Supreme Court has upended the ability of Congress to give the Environmental Protection Agency and other federal agencies broad scope to combat air pollution, including the emission of greenhouse gases. Meanwhile, further Biden administration efforts to limit emissions face opposition in the courts.