LONGVIEW, Wash. (AP) — Conservation groups have asked a judge to reject permits for a proposed $2 billion methanol plant in southwest Washington state. The Columbia Riverkeeper group and several other organizations are challenging the U.S. Army Corps of Engineers’ 2019 approval of the plant’s permits. The groups argue that the Corps illegally approved the permits with an inadequate environmental review of the project. The Daily News reports that an analysis by local officials found that the plant would reduce greenhouse gas emissions by offsetting methanol production in China. Environmentalist organizations like Columbia Riverkeeper say those estimates are based on unsubstantiated theories.