Statesman: UN environmental agency’s report warned that hundreds of millions of South Asians face growing water crisis due to over-exploitation, climate change and inadequate cooperation among countries which are threatening river basins that sustain about half of the region’s 1.5 billion people. According to the UNEP, South Asia is home to one-fourth of the global population, including some of the world’s poorest people, who have access to less than 5 per cent of the planet’s freshwater …