By Dr. Vivek Kumar Singh and Prasad
The author is Project Scientist, Jharkhand Space Applications Center, Department of IT, Jharkhand
The water situation in India needs serious reckoning. Per capita availability of utilisable water was 3450 cubic meters in 1951 which fell to 1250 in 1999. And according to the Ministry of Water Resources, it is expected to further decrease to 662 cubic meters per person in 2050.
The ecological consequences of drawing heavily on groundwater are grave. Deep aquifers are a vital link in the hydrological cycle because they release water slowly into rivers, lakes and wetlands in the dry season and soak up water to prevent flooding during the wet. Drawn critically, it would result in dried wetlands and river. Studies indicate that by 2050, more than 50 per cent of the Indian population may shift to cities, with water stress increasing manifold. Collecting rain however...