The Ganges-Brahmaputra region also faces the threat increased frequency of flood events . Floods and extreme events can impact river channel systems . One of the challenges in South Asia is the shifting boundaries of river channels. For instance, the major floods on the Indus in July 2010 altered the river's course in Pakistan, moving it closer to the Indian district of Kutch . In the eastern tributary of the Ganges system, the alluvial fan of the Koshi River basin has shifted by more than 113 km to the west in the past two centuries , which may be due to heavy sediment load from the Himalayan rivers in which about 50 million tons of sediment is deposited annually in the alluvial plains .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report