All food production systems  have been undermined by climate change and are expected to experience larger impacts in the future as described in earlier sections . In addition, sudden production losses from extreme climate events can reduce food security . For example, a 2007 drought-induced crop failure in southern Africa led to severe food insecurity in Lesotho because of the land-locked country's dependence on imports from South Africa that aggravated food availability and access under conditions of declining food production and land degradation . Pest and disease outbreaks in both crops and livestock due to climate change  have also impacted food availability and access . Loss in labour productivity from climate-change-related heat stress is a growing problem.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report