Projected impacts of climate change on the risk of food insecurity are a particular concern for the developing world drylands , potentially leading to the breakdown of food production systems, including crops, livestock and fisheries, as well as disruptions in food supply chains and distribution . Developing country drylands are particularly vulnerable due to a higher share of populations with lower income, lower physical access to nutritious food, social discrimination and other environmental factors that link to climate change. For example, countries such as Somalia, Yemen and Sudan faced recent and resurging challenges from an increase in desert locusts, the effects of which, in 2020, extended from East Africa through the Arabian Peninsula and Iran as far as India and Pakistan. Meynard et al.  note that under climate change, some areas suffering from previous outbreaks may see changes in formation of swarms of Schistocerca gregaria. Salih et al.  recognise that attributing the 2020 swarms as a single event to climate change remains challenging, but highlight that projected temperature and rainfall increases in deserts and strong tropical cycles can create conditions conducive to the development, aggregation, outbreak and survival of locusts. Mandumbu et al.  highlight how crop parasites such as Striga spp. in southern Africa may benefit from higher temperatures and rainfall activating dormant seeds, while high winds aid their dispersal. Combined with increasing risks of erosion and soil fertility losses , this can have important impacts on the yields of key dryland crops such as maize and pearl millet.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report