STUNG TRENG, CAMBODIA - MAY 7: Ota Khami, 55, stands where his home use to be before it was bulldozed to make way for the Sesan 2 dam, on May 7, 2015 in Stung Treng, Cambodia. Conservationists and politicians are warning the quest for hydropower is threatening the food supply of more than 40 million people in the Mekong basin. (Photo by Jason South/Fairfax Media/Getty Images)
