Those wildfires are so extreme that they’ve sent smoke streaming to the North Pole, and the plume is expected to reach Canada later this week.

This year’s wildfires are already outpacing last year’s record-setting season in terms of carbon dioxide being pumped into the atmosphere.

Later this week, smoke from the Siberian fires is expected to drift even further away, reaching northern Canada where it will cloud skies and pollute the air.

A study released in the wake of last year’s record fires shows the extreme heat that helped drive them was made 600 times more likely by the climate crisis.

Once it’s in the atmosphere, it will heat things up further and up the risk of more large fires.