As climate change destabilizes food systems, social workers are increasingly supporting people who struggle to access food. This chapter reframes food security as a central concern for social work, one tied to survival, justice, and resilience. Rising temperatures, crop failures, and disrupted supply chains heighten food prices and scarcity, placing growing pressure on vulnerable households and welfare systems. The chapter explores how social workers can integrate climate adaptation into practice specific to food security, helping clients access food through community programs or foraging; growing food in small or shared spaces; and preserving it using low-tech, traditional methods. It introduces the Rapid Food Vulnerability Screen, a brief tool for assessing food insecurity risk, and reflective case studies for application in diverse settings.