Canadian wildfire smoke affects Wisconsin
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Forecasters warn that hazy, grayish-blue skies could persist for many weeks as fires continue to burn, though most smoke will remain high in the atmosphere.
World leaders may face smoke warnings when they gather next week in Alberta as wildfires burned out of control across much of Canada and caused the country's second-worst fire season in decades.
Claro Fire broke out near Lake San Marcos, California, sending smoke across Carlsbad, La Costa Oaks, and Encinitas. Evacuation order has been issued.
Toxic air spreads hundreds or even thousands of miles from where wildfires burn. Last week, Chicago felt the sting—and warnings weren’t enough to protect health.
AccuWeather long range meteorologist Paul Pastelok said long-lasting stretches of deep blue sky may not return to the Northeast for weeks, or possibly even months.
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Calgary Herald on MSNFeeling hazy from the wildfire smoke? Here's whyWith seasonal wildfire smoke rolling into Calgary, residents often have questions about all the things that come with it.
As Alberta faces the prospect of another wildfire smoke-filled summer, experts are urging people to monitor conditions and take steps to protect their health.