Waste

Iraqi children search through garbage for recyclable items on June 10, 2014, at a waste dump on the outskirts of the shrine city of Najaf, in central Iraq.

Haidar Hamdan/AFP

Iraqi children search through garbage for recyclable items on Wednesday at a waste dump on the outskirts of the shrine city of Najaf, in central Iraq

A rag picker sorts through garbage, picking out recycable materials to sell, as birds hover and a dog sleeps at the Ghazipur landfill site in the east of New Delhi, India, on Friday, May 30, 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.

Udit Kulshrestha/Bloomberg

A rag picker sorts through garbage, picking out recyclable materials to sell at the Ghazipur landfill site in the east of New Delhi, India, on Friday

TOPSHOTS A worker activates an hydraulic...TOPSHOTS A worker activates an hydraulic press at a waste paper collection outlet in Hong Kong on September 25, 2013.  While the former British colony already recycles around half of its waste, its per capita generation of domestic waste remains significantly higher than other leading Asian cities, including Tokyo, Seoul and Taipei.

Philippe Lopez/AFP/Getty

A worker activates an hydraulic press at a waste paper collection outlet in Hong Kong on Wednesday. The former British colony already recycles about half of its waste, and its per capita generation of domestic waste remains significantly higher than other leading Asian cities, including Tokyo, Seoul and Taipei. Read more