But how much trust can we put in European emissions testing?

Air pollution from India and China is making its way across the Pacific.

Companies are defying orders to cut back on air pollution.

Smog’s material costs explain China’s strong reaction.

Toxic smog is a fact of life in urban China, but deaths from air pollution in India are projected to rise faster in the coming years.

Toxic air pollution is killing millions of people every year, but smarter energy solutions (like shale gas) can save lives.

China’s capital is tightening the standards for triggering its most serious air quality warning.

This week, Beijing warned children and the elderly to stay away from deadly smog and not to venture outside.

Beijing just issued its second ever air pollution “red alert” while northern China is warned to expect heavy smog this weekend.

From Beijing to Shanghai to New Delhi, toxic smog is choking some of Asia’s biggest cities. The problem will get worse before it gets better.