Wildfire smoke clouds sky, hurts air quality on East Coast

Smoke and ash from massive wildfires in the American West clouded the sky and led to air quality alerts Wednesday on parts of the East Coast as the effects of the blazes were felt 2,500 miles (4,023 kilometers) away.

Canadian military on alert as wildfires rage

The Canadian military was on standby Saturday to help evacuate towns and fight more than 170 wildfires fueled by a record-smashing heat wave and tinder-dry conditions as the government in Ottawa warned of a "long and challenging ...

Climate change brings fires, floods and moths to Siberia

Best known as a vast, cold tundra, Russia's sprawling Siberia region is being transformed by climate change that has brought with it warmer temperatures, forest fires and growing swarms of hungry moth larvae.

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