As the United States heads toward an election year in 2020, climate change promises to stay in the headlines. Increasing public concern about and desire to address the consequences of global warming drive this attention, along with the debate about a Green New Deal that promotes social justice alongside accelerated deep reductions in greenhouse gas emissions. Now is the time to translate these aspirations into action within the constraints of technical, cost, and social realities. This is optimization, not compromise—call it a Green Real Deal.