The Olympics in China has reminded us about the problems of air pollution. Athletes have been concerned about how the pollution levels will affect both their health and their performance. Images from China show far from crystal clear air so the concerns seem justified.
It is easy to view the quality of Chinese air as a remote problem. After all, our air doesn’t look like that, does it? But there are problems with air quality in many countries, even where we cannot see any obvious cause for concern. Read On >>
