Environment

Environmental legislation in the U.S. encompasses clean air and water standards, protection of public lands and wildlife, regulation of toxic chemicals, and the country's response to climate change. The Environmental Protection Agency enforces the Clean Air Act and Clean Water Act — landmark laws passed in the 1970s that have significantly reduced pollution but remain the subject of ongoing legal and political battles. In recent years, the biggest legislative fights have centered on climate: the Inflation Reduction Act of 2022 invested $369 billion in clean energy and climate measures — the largest climate investment in U.S. history — while the 2025 One Big Beautiful Bill clawed back a significant portion of those incentives. Global comparisons are stark: the European Union has enacted a comprehensive Green Deal and carbon border tax, while China has become the world's dominant solar panel manufacturer despite heavy domestic coal use. Deforestation, ocean acidification, biodiversity loss, and extreme weather events — all linked to climate change — are issues that require international cooperation in addition to domestic policy. The debate is not just about science but about economics, energy security, and the pace of transition away from fossil fuels.