With less than 1.2 per cent of all water on Earth available for humans to use, the world faces a 40 per cent shortfall in available global water supply by 2030, according to latest United Nations data.
The world's top ten crops - barley, cassava, maize, oil palm, rapeseed, rice, sorghum, soya bean, sugarcane and wheat - supply a combined 83% of all calories produced on cropland.