Trump administration revokes climate declaration, impacting U.S. emissions rules

The Trump administration has revoked a foundational declaration on climate change, impacting U.S. emissions regulations. This action invalidates a 2009 declaration that greenhouse gases harm public health, forming the basis for many U.S. emission rules for vehicles and power plants. Environmental groups call this the most significant attack on climate action in U.S. history, potentially leading to widespread deregulation.