Pollution in Delhi to rise with temp dropping

Delhi's experiment with the odd-even rationing scheme for private cars will begin at a time when air quality has been relatively better as compared to previous years, mostly because of the unusually warm weather. But the levels of particulate matter are expected to rise with the mercury dipping, making it difficult for pollutants to disperse. Environmentalists, meanwhile, have cautioned that the odd-even plan would not be enough to bring down pollution.