Climate change will likely reduce crop yields in many areas , mainly due to higher temperatures affecting crop phenology and the shortening of the crop growing season . Additional irrigation will be needed for most crops, although the shortening of the growing season could reduce irrigation needs in some cases . Irrigation needs could increase by 25% in northern and two-fold in southeastern Mediterranean , with arid southern areas at risk of insufficient water resources by 2100. The use of supplemental irrigation for winter wheat could become more common in northern Mediterranean .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report