Australian bushfires may have helped trigger La Nina
Australia's "Black Summer" bushfire catastrophe coughed up so much smoke it may have fuelled the global onset of La Nina in 2020, according to new research published Thursday.. The "Black Summer" bushfires raged across Australia's eastern seaboard from late 2019 to early 2020, razing swathes of forest, killing millions of animals, and blanketing cities in noxious smoke.