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. “It makes you think about climate change and also how it essentially could affect, you know, anywhere,” Bhatia said. “It’s not just the California problem or Australia problem. It’s kind of an everywhere problem.”
If the Canadian east is burning, that means eventually, and probably sooner than researchers thought, eastern U.S. states will also, Flannigan said. He and Williams pointed to devastating fires in Gatlinburg, Tennessee, that killed 14 people in 2016 during a brief drought in the East. The warmer the Arctic gets and the more snow and ice melt there — the Arctic is warming three times faster than the rest of Earth — the differences in the summer between Arctic and mid-latitudes get smaller. That allows the jet stream of air high above the ground to meander and get stuck, prolonging bouts of bad weather, Mann and Francis said. Other scientists say they are waiting for more evidence on the impact of bouts of stuck weather.
One study that looked at a dozen years of wildfire smoke exposure in Washington state showed a 1% all-ages increase in the odds of non-traumatic death the same day as the smoke hit the area and 2% for the day after. Risk of respiratory deaths jumped 14% and even more, 35%, for adults ages 45 to 64.
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