South Asia's smog 'getting worse'

http://www.bbc.co.uk/news/science-environment-16438071

A rapid rise in air pollution from fossil fuels and biomass burning has worsened winter smog and extended its duration in many parts of South Asia, scientists and officials have said.

In Bangladesh, India and Nepal the temperature has plummeted and clouds of fog and smoke hang in the sky blocking sunlight for several days.

Normal lives have been affected with many flights diverted and suspended and trains delayed because of low visibility.

Experts say they have noticed that the intensity of smog has grown in the Indo-Gangetic plains in the last few years, leading to increased impacts.