Birds fly around the chimney stacks of the Timarpur Okhla Waste Management Co. waste-to-energy incinerator plant, operated by Jindal Saw Ltd., in the Sukhdev Vihar area of New Delhi, India, on Thursday, May 29, 2014. New Delhi, whose population will reach almost 21 million by 2015, generates 8,000 tons of garbage a day. Trash is not separated between organic and inorganic materials -- everything from leftover food to batteries and beverage cans goes into Indian bins -- hurting efficiency and raising toxic emissions. Photographer: Udit Kulshrestha/Bloomberg via Getty Images
