Here is an article from Science Daily illustrating very clearly the issues I brought up in my earlier article “Managing water is paramount for the future of food production“.
According to Colin Chartres, Director General of the International Water Management Institute: “Asia’s food and feed demand is expected to double by 2050. Relying on trade to meet a large part of this demand will impose a huge and politically untenable burden on the economies of many developing countries. The best bet for Asia lies in revitalizing its vast irrigation systems, which account for 70 percent of the world’s total irrigated land”.