A shopper exits the Sikkim Organic Market in Gangtok, Sikki

A shopper exits the Sikkim Organic Market in Gangtok, Sikkim, India, on Monday, May 2, 2016. For more than a decade in the Himalayan foothills and across the northeastern state of Sikkim, 66,000 farmers have shunned chemical weed killers, synthetic fertilizers and gene-altered seeds. Their return to traditional farming methods has made the tiny state, sandwiched between China, Nepal and Bhutan, a testing ground for a counter movement to the Green Revolution, the half-century-old system that relied on modern seeds, chemicals and irrigation to boost crop yields and stave off hunger. Photographer: Prashanth Vishwanathan/Bloomberg via Getty Images