This document discusses the conceptual links between agriculture, cities/land use, and climate change. It focuses on ensuring human and ecological security through resilience and adaptation at multiple scales. Issues addressed include food security, migration towards cities due to climate change, the food vs fuel debate around biofuels, unequal impacts and responses to climate change between developed and developing areas, and the dialectic relationship between what we eat, where we live, and their combined impact on and challenge from climate change. Examples of case studies exploring these relationships are provided.