The long-term effect of wildfires in Canada: Q and A

The most harmful air pollutant worldwide is fine particular matter. In Canada, the biggest natural source of this pollutant is wildfires. Winds can spread wildfire smoke over a wide area, affecting areas hundreds of kilometers ...

Addressing inequity in air quality

Air quality varies greatly within regions and cities around the world, and exposure to air pollution can have severe health impacts. In the U.S., people of color are disproportionately exposed to poor air quality. A cover ...

China sets 2060 goal to go carbon neutral

Chinese President Xi Jinping vowed Tuesday that the world's largest greenhouse gas polluter will peak emissions in 2030 and go carbon neutral by 2060, in what environmentalists hailed as a major step forward.

Barcelona bans older, most polluting cars

Barcelona imposed a ban Thursday on older, more polluting vehicles during most of the day in a bid to reduce air pollution in Spain's second largest city.

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