RENO, Nev._ (AP) — A federal appeals court has rejected a bid by environmentalists and a Nevada tribe to halt construction of a geothermal power plant that opponents say would harm an endangered toad and destroy sacred hot springs. The 9th U.S. Circuit Court of Appeals refused on Monday to reinstate a preliminary injunction that temporarily suspended work on Ormat Nevada’s project 100 miles east of Reno. The plant would generate carbon-free power by pumping hot water from beneath the earth. A three-judge panel concluded further delay of the project would make it “all but certain” Ormat would be unable to meet a contract deadline to complete construction by the end of this year.