Earlier this year, WHO reclassified diesel exhaust as a Class I carcinogen (cancer causing). In effect, it slotted diesel exhaust in the same category as deadly substances such as arsenic, asbestos and tobacco. Studies have shown a strong link between diesel emissions and lung cancer.Firstpost: Green tax: What makes diesel cars so deadly
Often the car industry says that even in Europe diesel car numbers are going up. But first compare the quality of diesel that Europe has. The sulphur content in diesel in Europe is 10 parts per million (ppm). In India, it is between 50 and 350 ppm.