If there is a new administration ready to leap into that role in January 2021, meeting those targets will still be extraordinarily difficult, but it will be technically possible—especially if large cities and states like California and New York continue to escalate their ambitions in the interim, along with the European Union, which is in the midst of its own Green New Deal debate. Losing another four years to a Republican or a corporate Democrat, and starting in 2026 is, quite simply, a joke.