/ Steven Sadro Content for 69成人 en /climate/news/wildfire-smoke-reached-99-us-lakes-2019-2021 Where there's smoke, there's not always fire. Wildfire smoke drifted to nearly every lake in North America for at least one day per year from 2019 to 2021, found a 69成人 study. June 07, 2024 - 9:00am Katherine E Kerlin /climate/news/wildfire-smoke-reached-99-us-lakes-2019-2021 /climate/news/smoke-covered-70-california-during-biggest-wildfire-years As much as 70% of California was covered by wildfire smoke during parts of 2020 and 2021, according to a 69成人 study. May 22, 2024 - 9:32am Katherine E Kerlin /climate/news/smoke-covered-70-california-during-biggest-wildfire-years