Climate change impact on wildfire smoke pollution called the 'new abnormal'

SAN FRANCISCO -- It was a smell that invoked a memory. Both for Emily Kuchlbauer in North Carolina and Ryan Bomba in Chicago. It was smoke from wildfires, the odor of an increasingly hot and occasionally on-fire world.

While many people exposed to bad air may be asking themselves if this is a"new normal," several scientists told The Associated Press they specifically reject any such idea because the phrase makes it sound like the world has changed to a new and steady pattern of extreme events. Several scientists told the AP that the problem of smoke and wildfires will progressively worsen until the world significantly reduces greenhouse gas emissions, which has not happened despite years of international negotiations and lofty goals.

As the atmosphere dries, it sucks moisture out of plants, creating more fuel that burns easier, faster and with greater intensity. Then you add more lightning strikes from more storms, some of which are dry lightning strikes, said Canadian fire scientist Mike Flannigan at Thompson Rivers University in British Columbia. Fire seasons are getting longer, starting earlier and lasting later because of warmer weather, he said.

The type of fires seen this year in western Canada are in amounts scientists and computer models predicted for the 2030s and 2040s. And eastern Canada, where it rains more often, wasn't supposed to see occasional fire years like this until the mid 21st century, Flannigan said. "We thought we had it under control but we don't," Williams said."The climate changed so much that we lost control of it."

Wildfires expose about 44 million people per year worldwide to unhealthy air, causing about 677,000 deaths annually with almost 39% of them children, according to a 2021 study out of the United Kingdom.

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