High Country News: At first glance, it looks like a great way to counter climate change — convert a greenhouse-gas-spewing coal power plant to a clean, modern facility fueled by plant matter. But the devil, as always, is in the details. The Boardman power plant — Oregon’s only coal-fired power plant — sits amid farmland in the eastern part of the state, near the scenic Columbia River Gorge. Since 1980, it’s provided juice for 250,000 consumers. More recently, it’s been charged with violating the Clean Air Act,…