) 3C and Table S3 in Online Supplement) ,show that the social vulnerability is by far most serious in South Asia , and lowest in Chao Phraya and in the Chinese basins. The GBM Basin has 39 percent of the total number of malnourished within the ten basins while Indus has 28 percent (GRUMP,2004). The other eight basins thus have the remaining 33 percent.