Temperatures in the upper Indus, upper Ganges, upper Brahmaputra, upper Salween and upper Mekong basins are projected to increase with considerable certainty between 1–2.2°C up until 2050, compared to the baseline period (1998– 2007). There is more uncertainty about precipitation patterns than temperature, but they are also projected to change between –3.5 to +9.5% for…