Table 1 Projected demand for food and water, 2020 and 2050, average of three climate change scenarios

Commodity	Year			Sector	Year
Commodity	2020	2050	% change		2020	2050	% change
Food demand (Mt)				Water demand (bcm)
				Domestic demand
Animal-source foods	1,230	1,643	34	HICs	48	53	11
Food crops	9,290	13,050	40	LMICs	146	198	36
Meat products	322	439	36	World	193	252	30
Cereals	2,431	2,896	19	Industrial demand
Maize	883	965	9	HICs	47	71	53
Rice	471	523	11	LMICs	88	171	94
Wheat	715	891	25	World	135	242	80
Other crops	94	121	29	Agricultural demand^a
Fruits and vegetables	1947	2,963	52	HICs	265	288	9
Oilseed crops	869	1,350	55	LMICs	1,669	1,870	12
Pulses	79	123	56	World	1,933	2,158	12
Roots and tubers	890	1,146	29	Total demand
Sugar	207	312	51	World	2,261	2,652	17

Source: Authors’ calculations based on IMPACT water–food model simulations. Values are averages of three climate simulation models—(1) Institut Pierre Simon Laplace (IPSL)^53,54, (2) Geophysical Fluid Dynamics Laboratory (GFDL) Earth systems model⁵⁵ and (3) Hadley Centre Global Environmental Model global (HadGEM)⁵⁶—using the representative concentration pathway (RCP) 8.5, which is the highest emissions scenario but reflects current policies.
^aLivestock water demand and irrigation water demand from surface and GW sources only (net of precipitation on irrigated and rainfed areas).

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