Three years after the federal government listed a tiny Nevada toad on the endangered species list, a geothermal company seeking to develop a project near the toad’s only known habitat in Northern Nevada is suing the government over the listing. Ormat Technologies, headquartered in Reno, is suing the U.S. Fish and Wildlife Service (USFWS) and U.S. Department of the Interior, saying that the Dixie Valley toad was placed on the endangered species list “without any evidence” that its population is declining. … One of the concerns is that geothermal pumping in the area could affect the quality, temperature, or quantity of water in the wetlands where the toad lives.