Research in the USA suggests that a combination of global warming and ‘brown cloud’ pollution made up of particulate matter and other pollutants from burning fossil fuels are significantly reducing the rice harvest in India.

According to a paper published in the Proceedings of the National Academy of Sciences, the crop could have been more than 14% larger between 1985 and 1998 if pollution levels were lower and there has been no sign of improvement in more recent years.

Sam Bond

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