Smoke from the ongoing Canadian wildfires is expected to create murkier skies over Northern Europe, potentially lasting for the rest of the week and beyond. The soot particles, originating from the devastating blazes in Canada, are currently high in the atmosphere.

Astronomers and casual observers alike may notice the change. The presence of soot particles will likely make the sky appear less clear. Sunrises and sunsets may also appear more red.

The fires in Canada, with around 200 still active and over 100 deemed “out of control,” have already led to the evacuation of approximately 25,000 people. The smoke’s reach extends across the Atlantic, affecting air quality in distant regions.

While the smoke contains carbon monoxide and other particulate pollution, a Danish professor suggests that the particles are located high enough in the atmosphere to not pose an immediate health risk in Denmark. The phenomenon is compared to the effects of red sand from the Sahara or ash clouds from Iceland.

Clear weather conditions will provide the best opportunity to see the smoke.