PORTLAND, Ore. (AP) — Youth climate activists are attempting to bring back their suit against the federal government. The Oregonian/OregonLive reports they filed a motion Tuesday in federal court in Eugene to amend their lawsuit, Julianna v. United States. A three-member panel of the 9th U.S. Circuit Court of Appeals last year found a federal judge lacked the power to order or design a climate recovery plan in the high-profile climate change lawsuit. They noted that such a remedy should be made by the nation’s politicians or voters. Now, their lawyers are asking a U.S. District Court judge to allow them to change their suit to seek a ruling that the nation’s fossil fuel-based energy system is unconstitutional.