Effective adaptation options, together with supportive public policies enhance food availability and stability and reduce climate risk for food systems while increasing their sustainability . Effective options include cultivar improvements, agroforestry, community-based adaptation, farm and landscape diversification, and urban agriculture . Institutional feasibility, adaptation limits of crops and cost effectiveness also influence the effectiveness of the adaptation options . Agroecological principles and practices, ecosystem-based management in fisheries and aquaculture, and other approaches that work with natural processes support food security, nutrition, health and well-being, livelihoods and biodiversity, sustainability and ecosystem services . These services include pest control, pollination, buffering of temperature extremes, and carbon sequestration and storage . Trade-offs and barriers associated with such approaches include costs of establishment, access to inputs and viable markets, new knowledge and management  and their potential effectiveness varies by socioeconomic context, ecosystem zone, species combinations and institutional support . Integrated, multi-sectoral solutions that address social inequities and differentiate responses based on climate risk and local situation will enhance food security and nutrition . Adaptation strategies which reduce food loss and waste or support balanced diets"  contribute to nutrition, health, biodiversity and other environmental benefits . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report