- in 2010, 3.2 million people died prematurely from the air pollution from car exhaust - "A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990—2010: a systematic analysis for the Global Burden of Disease Study 2010" http://www.thelancet.com/journals/lancet/article/piis0140-6736(12)61766-8/fulltext 46 comments science