South Asia

"The infrastructure India has are mostly run-of-the-river hydropower plants that do not need massive storage," said Himanshu Thakkar, a regional water resources expert with the South Asia Network on Dams, Rivers and People.

"No path is without risks. The US is also distracted and may not be willing or be able to assist with crisis management," Mr Clary, who studies the politics of South Asia, told the BBC.

When the sea once flooded low-lying areas of South Asia, these dolphins moved inland - and when the waters receded, they stayed.

A refresh of its top-selling Model Y crossover was unveiled in January, but deliveries are just beginning, and only in China, with plans to continue on to Australia and south Asia.

Originating in Africa, okra travelled the globe by way of ancient trade routes and became a relied upon food source in South Asia and the Middle East before making it to America, where it is a staple crop in the South from April to October.