One of the centerpieces of the United States’ effort to combat climate change is the Environmental Protection Agency’s (EPA) controversial Clean Power Plan, which consists of the first-ever federal regulations requiring states to achieve massive carbon dioxide emissions reductions from existing fossil fuel-fired power plants. The regulations operate by setting interim and final emissions target dates for states to ultimately reach an aggregate 32% reduction in carbon emissions by the year 2030. This Note argues that the current regulations will not survive judicial scrutiny, because the U.S. Supreme Court has moved away from traditional administrative deference in instances where an administrative agency seeks an enormous and transformative...