Despite the increase in organic production, problems remain for Cuba's agricultural system and ability to feed itself with local produce.

CNN: Can the West cultivate ideas from Cuba's 'Special Period'?

Best estimates of future global agricultural water consumption (including both rainfed and irrigated agriculture), are of an increase of about 19% by 2050, but this could be much higher if crop yields and the efficiency of agricultural production do not improve dramatically.

UNESCO: CULTURE