
The Trump administration will overturn the Environmental Protection Agency's (EPA) 2009 Endangerment Finding, according to The Wall Street Journal and other media outlets. Under the Clean Air Act, the EPA found that greenhouse gas emissions "threaten the public health and welfare of current and future generations." The threat stems from the fact that greenhouse gas emissions, largely from burning coal, oil, and natural gas, are contributing to rising average global temperatures. (As of this article's publication, the original finding is still up at the EPA's website.)
Based on this finding, the EPA under the Obama administration and the Biden administration adopted various regulations aiming to reduce those emissions, including the imposition of strict and costly automobile and power plant emissions reduction requirements.