Wildfire smoke will linger and spread this weekend in the US. See which cities are most affected

illuminem summarises for you the essential news of the day, reviewed by our editorial team. Read the full piece on The Washington Post or enjoy below:

🗞️ Driving the news: Wildfire smoke from Canada continues to blanket large parts of the United States, pushing air quality in cities including Detroit, Chicago and Washington, D.C. to among the worst levels globally
• Around 109 million people across the Midwest, Mid-Atlantic and Northeast are expected to experience unhealthy air quality through early Sunday

🔭 The context: More than 800 wildfires are burning across Canada, with many out of control
• Smoke from major fires in Ontario and other provinces has travelled hundreds of miles south, affecting major urban areas and disrupting outdoor activities, sports events and public services

🌍 Why it matters for the planet: The growing frequency and intensity of wildfire seasons are increasingly linked to climate change, which is creating hotter, drier conditions that increase fire risk
• Beyond direct ecosystem damage, wildfire smoke is becoming a major public health issue, exposing millions to hazardous air pollution far from the original fire zones

⏭️ What’s next: Weather systems may temporarily improve air quality by bringing rain and shifting winds, but new smoke plumes are expected to return later in the weekend
• Authorities are advising residents to limit outdoor activity, keep windows closed and use high-efficiency air filters where possible

💬 One quote: “The wildfire situation across North America just got worse. Tens of thousands of lightning strikes across the Pacific Northwest has ignited dozens of new wildfires.” – Colin McCarthy, forecaster

📈 One stat: Nearly 6 million acres have burned in Canada this year, with 194 large or out-of-control fires reported as of late Thursday

Subscribe to our free newsletters to never miss a beat in sustainability.

The world needs sustainability knowledge. At illuminem, no interest group or shareholder can influence our work. Thank you for supporting our mission to make high-quality and independent sustainability information free for all. Every contribution helps. Thank you for donating today.