A sea of plastic spreads through the New Delhi slum of Taimur Nagar, a symbol of the grime and waste that makes the Indian capital one of the world's most polluted cities. The plastic bottles, bags, food wrappers and other detritus have gushed out of a drain that ends in the shanty, leaving stinking sewer water clogging the roads. Stray dogs, goats and cows munch the plastic waste as toddlers run around trying to retrieve footballs and water bottles. Taimur Nagar is one of many slums in Delhi and countless other Indian cities struggling to cope with waste. India generates around 5.6 million tonnes of plastic waste annually, according to government figures, with Delhi among the worst cities for plastic consumption.