A wildfire in the village of Melnichnaya Pad in Russia’s Irkutsk region is seen on May 27, 2019; volunteers managed to stop the fire from spreading to a summer camp for children. (Kirill Shipitsin/Tass/Getty Images)

Alexander Deyev can still taste the smoke from last year’s wildfires that blanketed the towns near his home in southeastern Siberia, and he is dreading their return.

“It just felt like you couldn’t breathe at all,” said Deyev, 32, who lives in Irkutsk, a Siberian region along Lake Baikal, just north of the Mongolian border.