Biofuel production threatens air quality and crop yields, study finds

Fighting climate change by producing more biofuels could actually worsen a little-known type of air pollution and cause almost 1,400 premature deaths a year in Europe by 2020, according to a new study.

The report said trees grown to produce biofuel - seen as a cleaner alternative to oil and coal - release a chemical into the air that, when mixed with other pollutants, could also reduce farmers' crop yields.

Source - http://www.guardian.co.uk/environment/2013/jan/07/biofuel-air-quality