The water necessary to produce the food required for an expanding human population is usually discussed only as an issue of blue water for irrigation (the water we use from rivers and aquifers). This neglects the fact that most food production is from rain fed farming which is critical in hunger and poverty stricken areas with rapid population growth.
This Policy Brief highlight the need to change how we view the worlds water resources. A shift in water thinking which considers soil moisture is essential in order to find realistic and sustainable options to feed the world of tomorrow.