特朗普宣布：正式撤销！奥巴马迅速发声

Core Viewpoint - The Trump administration has officially revoked the 2009 "Endangerment Finding" by the Environmental Protection Agency (EPA), which is a foundational element of U.S. climate regulation, potentially saving $1.3 trillion in regulatory costs and lowering car prices [1]. Group 1: Regulatory Changes - The revocation of the "Endangerment Finding" signifies a major rollback in U.S. climate policy, undermining the legal basis for regulating greenhouse gas emissions from vehicles, power plants, and factories [1]. - This action is seen as a significant step back for climate policy under the Trump administration, contrasting sharply with the previous administration's stance [1]. Group 2: Implications for Public Health and Safety - Former President Obama criticized the move, stating that it will weaken regulations on vehicle emissions and power plant emissions, making the U.S. "less safe and less healthy" [1]. - The revocation is expected to diminish the country's ability to address climate change effectively, while simultaneously benefiting the fossil fuel industry [1].