# The US Environmental Protection Agency is seeking to repeal a landmark environmental decision to regulate greenhouse gas emissions and fight climate change. This would rescind a 2009 declaration that determined that carbon dioxide and other greenhouse gases endanger public health and welfare. America is the world’s second-largest emitter of greenhouse gases, and historically has emitted more planet-warming pollution than any other country. Environmental groups have already threatened legal action, arguing that the move to repeal lacks both a scientific basis and a legal foundation.
Trump administration proposing to rescind landmark endangerment climate rule