LA smog: 25% of it actually belongs to China

China is already the world's second-biggest producer of greenhouse gas emissions and is expected to surpass the United States as the biggest.

- A third of China is exposed to acid rain
- 400,000 people die prematurely every year in China from diseases linked to air pollution
- on certain days almost 25 percent of the particulate matter clotting the skies above Los Angeles can be traced to China

Via BoingBoing. Source: New York Times (login required)