Environmentalists and air pollution experts are disappointed with theSupreme Court order revoking the ban on more than 2,000cc diesel luxury cars. They fear that the imposition of 1% green cess on such vehicles will not act as a deterrent.The SC-appointed environment Pollution Control Authority (EPCA) recently recommended a green tax ranging from 10% to 25%, which would bridge the price gap between petrol and diesel. Some auto companies had, however, offered to pay 1% of the showroom price as an environment compensation charge (ECC).

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