An aircraft releases fire retardant behind houses as a brush fire creeps through the Namadgi National Park in Canberra, Australia, in January 2020. (Brook Mitchell/Getty Images) Comment on this story Australian bush fires in 2019 and 2020 helped produce a rare multiyear La Niña event half a world away, an analysis published in May suggests. Researchers say the far-off wildfires contributed to an unusual streak of La Niña winters in the United States — proof of the long chain of climate interactions that connect seemingly unrelated locales.

Publishing in ScienceAdvances, researchers simulated the way emissions produced by the wildfire smoke […]

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By Donato