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The original was posted on /r/science by /u/Wagamaga on 2024-11-26 18:16:40+00:00.

Original Title: Early-season 2023 wildfires generated record-breaking surface ozone in the Upper Midwest. More than 40 million acres burned, an area the size of Georgia, injecting an enormous amount of smoke into the atmosphere, where photochemical reactions generated ozone pollution