Climate change & farming output

Written by Gary Gardner

The impact of climate change on farming output could lead to higher food prices, although the effect of CO2 fertilization influences the outcome.  Without considering CO2, global food prices are estimated to increase by 3% to 84% by 2050.  Factoring in CO2 fertilization (but not the dampening impact of ozone, pest, and disease) produces projections ranging from a 30% decline to a 45% increase in prices by 2050.

Gary Gardner, State of the World 2015, p.73

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