calling the Avengers!

Federal wildlife officials plan to withdraw proposed protections for the snow-loving wolverine Tuesday, in a course reversal that highlights lingering uncertainties over what a warming climate means for some temperature-sensitive species.

Wolverines, or “mountain devils”, need deep snows to den. But while there is broad consensus that climate change will make the world warmer, drilling down to determine what that means for individual species remains difficult.

US Fish and Wildlife Service director Dan Ashe said predictions about climate change’s localized impacts remain “ambiguous”.

Rejecting the conclusions of the agency’s own scientists, Ashe said that made it impossible to determine whether less snow cover would put wolverines in danger of extinction in coming decades.

“Climate change is a reality,” Ashe said. “What we don’t know with reliability is what does climate change mean for denning habitat that wolverines prefer.”

He added, “It’s possible wolverines are adapting and continuing to adapt.””

The Guardian, 13 Aug 2014