Authorities in New Delhi shut schools, halted construction and banned nonessential trucks from entering the city after air pollution shot up to its worst level this season.

Milton grew quickly into a Category 5 storm Monday morning and is forecast to make landfall in Florida midweek.

Wildfires across the western United States and Canada have put millions of people under air quality alerts, as thousands of firefighters battle the flames.

Residents and businesses of the townsite inside Jasper National Park found out Saturday for certain whether or not they have anything to return to.

Sakha is now the fourth region in the Far East where a state of emergency is currently in place due to wildfires. The other three are the Zabaykalsky and Amur regions, as well as the republic of Buryatia. Russia’s wildfire season officially began in early March. By mid-April, regions in the Far East recorded nearly twice as many fires as they had during the same period last year, with most blazes caused by human negligence.

Extreme pollen spread in Eastern Norway is causing significant discomfort for allergy sufferers due to a combination of a long winter, delayed spring, and sudden warm, dry weather.