Children comfort each other in a scrapyard in Kathmandu, Nepal, in a 2011 image by photographer Chan Kwok Hung of Hong Kong. The picture, an entry in the "Quality of Life" category, won top honors in the 2011 Environmental Photographer of the Year awards, whose winners were announced last week.
The children live with their grandmother and search the scrapyard for things to sell, using the money to buy food, according to the photographer. "They had found nothing for a few days," he said in a statement.
More than a third of Nepal's 12.6 million children live below the poverty line, according to a 2010 report by UNICEF. An even higher number suffer from malnutrition and lack of access to education.
Photograph by Shem Compion, EPOTY.org/Fame/Barcroft
Natural-World Finalist: "Touché"
A female green-crowned brilliant hummingbird strikes an effective blow to a male in this image by Hungarian photographer Csaba Tökölyi. Green-crowned brilliants are commonly found in mountainous areas in southern Central America and northwestern South America.
Photograph by Csaba Tökölyi, EPOTY.org/Fame/Barcroft
Natural-World Winner: "Lightning at Kaieteur Falls"
Lightning illuminates Kaieteur Falls at night in British photographer James Broscombe's winning image in the "Natural World" category. Located in Guyana's Kaieteur National Park, the natural wonder is five times the height of Niagara Falls.
Photograph by James Broscombe, EPOTY.org/Fame/Barcroft
Underwater-World Finalist: "Giant's Gullet"
Fish flee the gaping maw of a Bryde's whale, which surprised U.S. photographer Doug Perrine, who was in the middle of photographing striped marlin lured by a bait ball of sardines. In an account released with the image, Perrine said he snapped the picture while also fleeing the whale.
Sleek and lean, Bryde's whales use their meshlike mouth plates, called baleen, to filter food as they power through the sea.
Photograph by Doug Perrine, EPOTY.org/Fame/Barcroft
Photograph by Bjørn Leirvik, EPOTY.org/Fame/Barcroft
Changing-Climates Finalist: "Lost Villages"
A seaside road succumbs to erosion on the Holderness coast in Yorkshire, England. The area suffers the highest rate of coastal erosion in Europe, according to a statement by London-based photographer Neil A. White.
Several villages are under constant threat, as the coast crumbles at a rate of about six feet (two meters) a year, he says. Many villages that have been lost to the sea date back to Roman times.