Systematic assessments of climate response for root crops as a group are lacking . Climate suitability is projected to increase for tropical root crops , and some studies have found that root crops will be less negatively impacted than cereals, but there is no consensus on this . For potato, Raymundo et al.  projected global yield reductions of 2-6% by 2055 under different RCPs, but with important differences among regions; tuber dry weight may experience reductions of 50-100% in marginal growing areas such as central Asia, while increases of up to 25% are expected in many high-yielding environments. Projections show yield increases of 6%
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report