Science & EnvironmentUnited Airlines puts up millions for biofuel refinery in northwest OregonBy Bradley W. Parks (OPB)Nov. 16, 2022 1:23 a.m.The investment could be a big boost for a Texas company hoping to produce sustainable aviation fuel and renewable diesel along the Columbia River.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up