Sat May 31 19:20:00 UTC 2025: **Summary:**

Wildfires in Manitoba, Canada, have forced the evacuation of 17,000 people and are sending thick smoke south into the Northern Plains and Midwest of the United States. Several states, including Wisconsin, Michigan, and Minnesota, have issued air quality alerts, warning of unhealthy conditions for sensitive groups and even the general public. Studies have linked wildfire smoke exposure to increased risk of cardiorespiratory problems, and these fires are occurring after two years of record-breaking wildfire seasons in both Canada and the U.S. Climate change is contributing to the increased frequency and intensity of these devastating fires.

**News Article:**

**Canadian Wildfire Smoke Chokes U.S. Midwest, Northern Plains**

**Midwest/Northern Plains, USA** – Millions of Americans are facing compromised air quality as smoke from raging wildfires in Manitoba, Canada, drifts south into the United States. The fires, which have already forced the evacuation of 17,000 people in Manitoba, have triggered air quality alerts across Wisconsin, Michigan, and Minnesota.

“This is the largest evacuation Manitoba will have seen in most people’s living memory,” said Manitoba Premier Wab Kinew, who declared a provincewide state of emergency.

Meteorologists are reporting that the smoke is impacting the Northern Plains and Midwest, with Wisconsin and Michigan issuing alerts until Saturday warning that the air quality is unhealthy for sensitive groups such as children, the elderly, and those with respiratory issues. Minnesota, which is under a statewide alert until Monday, expects air quality to reach levels that will also impact the general public.

Health experts are warning about the dangers of prolonged exposure to wildfire smoke. A recent study published in Epidemiology found that the risk of cardiorespiratory problems, such as hypertension and heart attacks, can increase for months after exposure.

These wildfires are the latest in a series of increasingly devastating blazes in both Canada and the U.S. In 2023, Canada experienced its worst wildfire season on record, and the U.S. has also seen a surge in large, intense fires in recent years.

Experts attribute the increased frequency and intensity of wildfires to climate change. Earlier this year, a deadly wildfire in Los Angeles killed at least 29 people and destroyed thousands of homes.

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