The election of Donald Trump as president of the United States last Tuesday fell like a lightning bolt on the American environmental community. But it has left many environmentalists energized for battle—albeit against an adversary whose positions are in part still ill-defined.

“The next few years will bring some big fights and also some unpredictable fluidity,” Environmental Defense Fund president Fred Krupp wrote on his organization’s website. “We will ferociously defend America’s bedrock environmental protections.“

“If President-Elect Trump and his allies think the results of this election give them a mandate to roll back this progress they are sorely mistaken,” says League of Conservation Voters president Gene Karpinski in a statement. “To the contrary, polls demonstrate bipartisan support for action