BEN TRE PROVINCE, VIETNAM - MAY 04: A dried out Watermelon field on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: Cattle in a drought hit area on May 04, 2016 in Ben Tre Province, Vietnam. The lack of fresh water also affects the rising of live stock. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: A water delivery truck is seen on farm land, due to the lack of rain now most farmers need to buy water for their daily needs on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: A dried out lotus and fish pond on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: Low water in the river and higher salt levels result in a poor catch for local fisherman on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: A woman cycling by a dried out watermelon field on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: Graves in a drought hit area on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)

BEN TRE PROVINCE, VIETNAM - MAY 04: A dried out lotus and fish pond on May 04, 2016 in Ben Tre Province, Vietnam. Vietnam's Mekong Delta had been hit by its worst drought in 90 years caused by the El Nino weather patterns and hydroelectric dams. Based on reports, nearly 140,000 hectares of the Mekong Delta in Vietnam are bone dry and contaminated by salt water, as brine from the sea pushes up the delta's channels. People in affected regions are growing desperate to find water for basic needs and huge amount of the crops for the coming harvest in Vietnam's Mekong Delta, which produces about half of the country's rice, have been spoiled. (Photo by Christian Berg/Getty Images)