Few things signal something’s gone haywire on the planet quite like frozen land on fire. Now scientists have determined that Arctic fires, even milder ones, can reshape a landscape for decades, in ways that may make it even harder to keep global heating from eclipsing international goals. It’s mostly rising temperatures that are thawing out frozen Arctic ground but northern blazes — already increasing — are now understood to play a disproportionate role, according to a study published last week in the journal One Earth . Previous research has shown that higher temperatures, drier soil and more lightning storms will lead to more fires . That work, with the new paper, mean that “in the future we might expect to see an outsized influence on thaw from the fires that will likely increase,” said Róisín Commane, a Columbia University assistant professor who studies atmospheric composition and wasn’t involved in […]