"For you to believe that there's somehow a taint being created, you have to believe that Holocaust deniers are somehow a lot worse than climate science deniers," said Joe Romm, a climate communicator and fellow at the Center for American Progress. "I don't believe that." (Note: Romm was former Acting Assistant Secretary of the U.S. Department of Energy during the Clinton Administration.) Romm, who is Jewish, notes that Holocaust deniers are both rare and marginalized. But those who dispute climate change, he said, are still consulted by the mainstream media and elected officials and thus constitute a threat that could affect future generations. "If people who deny climate science continue to be successful in thwarting climate action," Romm said, "then it's going to be a catastrophe beyond imagining."