
Cows are herded at a farm that practices organic farming techniques in Beijing, China, on Tuesday, May 22, 2012. China's farmland shrank 8.33 million hectares (20.6 million acres) in the past 12 years, Chen Xiwen, Premier Wen Jiabao's top agriculture adviser, said last year. Photographer: Nelson Ching/Bloomberg
Nelson Ching/Bloomberg