claim: "global food demand is expected to increase by 50 to 97 percent by 2050."
author: sean spicer
evidence_1: irrigation expansion; and (h) changes in the text as required by the new historical  data and projections. like the interim .... 50. annex 2.1 india's food demand  projections in a global context . .... measuring the increase in aggregate  agricultural production. (all crop ... growth rates of demand and production,  percent p.a. .
evidence_2: global food demand is increasing rapidly, as are the environmental impacts of ....  and mean projected 2050 increases (white; percent increases above bars). ..... ( 1997) human alteration of the global nitrogen cycle. .... crop sci 50:s85–s98.
evidence_3: oct 13, 2009 ... the required increase is thus about 50 percent. .... in the first half of this century,  global demand for food, feed and fibre is expected to grow by. 70 percent ......  outlook for world crop prices to 2018; index of real prices; 1997 = 1.
evidence_4: oct 3, 2016 ... global demand for cereals is expected to reach 3 billion tons by 2050, ... into the  equation prices could increase 60 to 97 percent by 2050.
evidence_5: jun 21, 2017 ... the current world population of 7.6 billion is expected to reach 8.6 billion ... the  percentage of its population aged 60 or over is expected to rise ...