In this week's edition of Science, eleven researchers from prominent universities around the US criticized the federal government's justification for rolling back vehicle fuel economy standards. They wrote that the economic assumptions made in the government's 2018 report resulted in a "flawed" analysis that will likely result in more traffic fatalities, more congestion, and more greenhouse gases emitted. The Environmental Protection Agency (EPA) under Trump has moved to rescind a number of environmentally-minded regulations instituted under the Obama Administration.