Massachusetts v. EPA

Massachusetts v. EPA (2007) was a landmark Supreme Court case where the state of Massachusetts and several other parties sued the Environmental Protection Agency (EPA) to compel it to regulate greenhouse gas emissions from vehicles. The Court ruled that the EPA had the authority under the Clean Air Act to regulate these gases because they could harm public health and the environment. This decision affirmed that the federal government has a responsibility to address climate change and set a precedent for future environmental regulations, highlighting the legal standing of states in seeking action against federal agencies.