"Inappropriate implementation of this listing decision could result in widespread social and economic impacts, including increased power costs and further increases in fuel prices, without providing any more protection for the species," he said.
Deborah Williams, a former Interior Department special assistant for Alaska and an advocate in the state for global warming response, said Palin's lawsuit was not a prudent use of state money.
"Clearly Secretary Kempthorne put a tremendous amount of thought into the listing decision and concluded correctly that listing was required," she said.