Hazardous Smoke from Canadian Wildfires Plagues US Cities
With 119 out-of-control blazes burning in Canada, hazardous air quality has swept across major US metropolitan areas, prompting health warnings and underscoring the growing health risks linked to climate change.
Smoke from 119 out-of-control wildfires in Canada has drifted across the border, causing hazardous air quality in US cities including Chicago, Detroit, New York, and Washington DC. The smoke, originating from fires in Minnesota and western Ontario, has turned skies orange and prompted health alerts advising residents to stay indoors. Experts link the increasing frequency of such events to global warming and fossil fuel use, with research projecting significant future health impacts in the US.
As of Friday afternoon, the smoke had turned skies an eerie orange across the Midwest, Northeast, and parts of Canada. Chicago and Detroit recorded the worst air quality globally on Friday, while New York and Washington DC ranked in the top 10 for poor air quality. The fires are burning so intensely that smoke is rising into the atmosphere and getting whisked on the jet stream eastward, affecting regions far from the source.
Residents in affected areas have been told to stay indoors as they search for ways to reduce exposure to harmful wildfire smoke. While fresh air is expected to arrive in at least some locations over the weekend, the fires show no signs of abating, suggesting more smoke could be in store later this summer. This situation mirrors the worst wildfire season on record in Canada in 2023, which also sent smoke streaming into the region.
Burning fossil fuels has increased the odds of destructive wildfires, leading to more frequent smoke events. Similar scenes have played out in Europe, with fires rippling through Spain, and orange skies have appeared in places as far apart as Australia and California in recent years. Research indicates that matters are likely to worsen unless the world reduces its use of coal, oil, and gas.
A study published last year in Nature projects that wildfire smoke could cause 71,420 excess deaths annually in the US by mid-century, a 73 percent increase compared to the 2010s. Researchers estimate up to 1.9 million people in the US may die from smoke-related health issues between now and mid-century. The current smoke events are viewed as a precursor to worse outbreaks if temperatures continue to rise.
