Heat wave in Pacific Northwest offers a glimpse of climate change’s impact in N. AmericaBy GILLIAN FLACCUS (Associated Press)PORTLAND, Ore. March 1, 2022 5:42 p.m.📨 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