“An instance of how mega-risks may compound into nuclear war is the long-standing animosity between India and Pakistan, chiefly over Kashmir, terrorism, and the waters of the Indus River which feed both countries at a time of growing climate stress.

Source: https://dissidentvoice.org/2023/01/doomsday-clock-jitters-and-how-to-fix-a-broken-planet/

He then goes on to describe the Ganges River, to the east of the Indus River.

Source: https://thediplomat.com/2023/09/what-should-indias-name-be/