Key Takeaway
Environment Canada issued health warnings after sky over city turns yellowSmoke from more than 100 active wildfires in northern Ontario have made Toronto’s air quality the worst in the world on Wednesday and caused yellow, smoky air in cities across the northeast US. Environment Canada issued health warnings on Wednesday after the sky over country’s largest city turned a sickly…
Published July 15, 2026 · Category: News
Overview
Environment Canada issued health warnings after sky over city turns yellow
Smoke from more than 100 active wildfires in northern Ontario have made Toronto’s air quality the worst in the world on Wednesday and caused yellow, smoky air in cities across the northeast US.
Details
Environment Canada issued health warnings on Wednesday after the sky over country’s largest city turned a sickly yellow and was ranked the worst in the world according to IQAir, the Swiss technology company that racks global air quality.
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Source
Originally published at www.theguardian.com.
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What is "Wildfires in Ontario make Toronto air quality worst in world" about?+
Environment Canada issued health warnings after sky over city turns yellowSmoke from more than 100 active wildfires in northern Ontario have made Toronto’s air quality the worst in the world on Wednesday and caused yellow, smoky air in cities across the northeast US.Environment Canada issued health warnings on Wednesday after the sky over country’s largest city turned a sickly yellow and was ranked the worst in the world according to IQAir, the Swiss technology company that racks global air qual
Who reported this story?+
This story was reported by The Guardian World.