Since the start of the second Trump administration, the United States has cancelled much of its policy support for clean energy and withdrawn from international cooperation to address the climate crisis, leaving the climate community shellshocked. The narrative has shifted too, with opponents of the clean energy transition embracing what is best described as a “New Climate Denialism,” rooted in the idea that decarbonization is unrealistic and expensive, and that the U.S. can safely double down on fossil fuels while adapting to climate hazards.