Food sovereignty brings together adaptation options based on agroecological methods, access to resources, collective and CbA . Addressing food security and nutrition in light of climate change impacts and vulnerabilities is considered to arise from a mixture of globalised supply chains and local production, not one or the other . Evidence on strengthening local and regional food systems with a food sovereignty approach, in terms of access to resources , shortened food chains and CbA strategies suggest that these strategies can positively contribute to climate change adaptation in many contexts   but can also lead to conflict especially regarding management of mobile resources such as fisheries . All these options can build adaptation through actions that strengthen local capacities and the power to act within food systems. Securing and recognising tenure for Indigenous Peoples  and local communities  can improve their ability to adapt by increasing the incentive to invest in resilient infrastructure and sustainable land management practices. Community seed banks and networks strengthen local seed systems and realise farmers' rights favouring access to a variety of local genetic resources, with landraces often more adapted to the local social, cultural and ecological environment and needs, and better adapted to harsh environments without external inputs . This plays a key role in PPB . The integration of informal and formal seed system elements is important for the adaptive capacity of smallholder farmers .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report