The Indus, Ganges, and Brahmaputra (IGB) river basins are exceptionally susceptible to rising temperatures. Under a 1.5°C global warming
scenario, they would warm up by more than 2°C, on average. A 2°C global warming scenario implies a regional average warming of around 2.7°C. The more likely scenarios specific for the region suggest temperature increases of between 3.5°C and 6°C by 2100. Most projections also indicate wetter conditions in the future.