Donald Trump’s election came at the worst possible time in so many ways. In a spectacular litany of truly awful aims, including mass deportation of undocumented immigrants, repealing Obamacare, retracting federal oversight of abusive local policing, undoing Obama-era banking reforms, and much more, where does one begin to describe the damage he and the Republican Congress could do? But the threat Trump poses to our environment and particularly to our ability to escape the worst impacts of global warming is unparalleled.