BEN TRE PROVINCE, VIETNAM - MAY 05: Dried out leaves are seen on trees 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: The water levels of the Mekong are seen to be unusually low 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)

CINCINNATI, OH - MAY 08: General view as the weather radar can been seen on an outfield scoreboard during a rain delay prior to a game between the Milwaukee Brewers and Cincinnati Reds at Great American Ball Park on May 8, 2016 in Cincinnati, Ohio. (Photo by Joe Robbins/Getty Images)

Indian pilgrims walk past damaged tents following bad weather after a tent collapse caused a stampede at a religious event arrive at a hopsital in Ujjain on May 6, 2016. At least seven pilgrims were killed after a storm caused a tent to collapse onto devotees at the Kumbh Mela mass religious gathering in central India, triggering a small stampede, police said May 5. Forty others were injured when the makeshift tent caved in following strong winds at one of the sites of the Kumbh, a pilgrimage that draws millions over four weeks to participate in a sacred bathing ritual. / AFP PHOTO / STRSTR/AFP/Getty Images

TOPSHOT - A displaced person looks at the fire on their mobile phone at a makeshift evacuee center in Lac la Biche, Alberta on May 5, 2016, after fleeing forest fires north of Fort McMurray. Raging wildfires pressed in on the Canadian oil city of Fort McMurray Thursday after more than 80,000 people were forced to flee, abandoning fire-gutted neighborhoods in a chaotic evacuation. No casualties have been reported from the monster blaze, which swept across Alberta's oil sands region driven by strong winds and hot, dry weather. / AFP PHOTO / Cole BurstonCOLE BURSTON/AFP/Getty Images

Tyra Abo sits on a cot at a makeshift evacuee center in Lac la Biche, Alberta on May 5, 2016, after fleeing forest fires north of Fort McMurray. Raging wildfires pressed in on the Canadian oil city of Fort McMurray Thursday after more than 80,000 people were forced to flee, abandoning fire-gutted neighborhoods in a chaotic evacuation. No casualties have been reported from the monster blaze, which swept across Alberta's oil sands region driven by strong winds and hot, dry weather. / AFP PHOTO / Cole BurstonCOLE BURSTON/AFP/Getty Images

A woman picks through donated clothing and goods at a makeshift evacuee center in Lac la Biche, Alberta on May 5, 2016, after fleeing forest fires north of Fort McMurray. Raging wildfires pressed in on the Canadian oil city of Fort McMurray Thursday after more than 80,000 people were forced to flee, abandoning fire-gutted neighborhoods in a chaotic evacuation. No casualties have been reported from the monster blaze, which swept across Alberta's oil sands region driven by strong winds and hot, dry weather. / AFP PHOTO / Cole BurstonCOLE BURSTON/AFP/Getty Images

A man uses his mobile phone as he lays on a cot at a makeshift evacuee center in Lac la Biche, Alberta on May 5, 2016, after fleeing forest fires north of Fort McMurray. Raging wildfires pressed in on the Canadian oil city of Fort McMurray Thursday after more than 80,000 people were forced to flee, abandoning fire-gutted neighborhoods in a chaotic evacuation. No casualties have been reported from the monster blaze, which swept across Alberta's oil sands region driven by strong winds and hot, dry weather. / AFP PHOTO / Cole BurstonCOLE BURSTON/AFP/Getty Images