The air quality in the Great Lakes and Northeast regions is about to take a turn for the worse, thanks to the dangerous smoke from Canadian wildfires. This isn't just any smoke; it's a thick, unhealthy haze that's set to blanket over 100 million people in the Midwest and Northeast. The source of this smoke is the wildfires raging in Canada, particularly in Ontario, which have already burned over 4.5 million acres this summer. While Canadian wildfire activity this year is not as intense as in 2023, the combination of these fires and a heat dome in the central US is a recipe for disaster. The smoke contains tiny pollutants called PM2.5, which can cause serious health issues, especially for vulnerable populations like those with lung or heart disease, children, and older adults. The smoke is already affecting air quality in parts of the Midwest and Northeast, and the situation is only going to get worse. The smoke is expected to linger and spread further, thanks to a weather pattern change that will cause the smoke to sink to the surface. This means that the air quality will deteriorate rapidly, with unhealthy levels of smoke expected from the Upper Midwest to New England. The smoke will also block sunlight, providing a temporary respite from the heat in the Northeast. However, this relief is short-lived, as the smoke will continue to affect air quality and health. The smoke is being driven south by a record-breaking heat dome, which is parked over the central part of the country. This heat dome is perfectly placed over northern Minnesota and southern Ontario, where wildfires are raging, and it's causing the smoke to flow east and south, right into the heart of the affected regions. The situation is made even more dire by the fact that the window for outbreaks of unhealthy wildfire smoke is getting bigger. Fire seasons in the West have become longer and more extreme, and climate change is responsible for the majority of the increase in surface wildfire smoke. This smoke has eroded decades of air quality improvements in parts of the US, particularly in the West. The health implications of this smoke are serious, with approximately 15,000 more deaths in the US from wildfire particulate matter from 2006 to 2020 than would have otherwise occurred in a cooler world. The smoke event in 2023 was so far-reaching that a study estimates more than 350 million people were exposed to daily wildfire smoke-induced air pollution. While the current situation is dire, it's important to remember that the smoke event in 2023 was even more extreme, and the door will remain open for more Canadian smoke plumes to migrate south as the wildfire season continues. The air quality in the Great Lakes and Northeast regions is about to take a turn for the worse, and it's crucial that people take steps to protect themselves from the harmful effects of the smoke.
