BEN TRE PROVINCE, VIETNAM - MAY 05: A woman looking over her spoiled watermelon field on May 05, 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 05: A woman works in nursery for grapefruits on May 05, 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: Farmers working on a shrimp farm on May 04, 2016 in Ben Tre Province, Vietnam. Too high salt levels also affect the breeding of shrimps and most farmers wait for the rain to come. 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: Some scrub is left from a drought hit rice 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)

UNSPECIFIED, VIETNAM - MAY 06: Women selling coconuts at the Market in Ben Tre City on May 04, 2016 in Ben Tre Province, Vietnam. Cocounuts are one of the main agricultural products in Ben Tre - while coconut trees are quite resistant against the drought this years harvest is smaller or lower quality then usual. 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 05: Two men cycle by a dormant shrimp farm that will not be used until the next rain comes as right now the level of salt in the water is too high on May 05, 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 bridge leeds over a dried out 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)

UNSPECIFIED, VIETNAM - MAY 06: The Market in Ben Tre City on May 04, 2016 in Ben Tre Province, Vietnam. A lot of the fruit harvest in the delta has been spoiled and what has been harvested is smaller or lower quality then usual. 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)