Climate Change and Food Security

Roughlya billion people around the world continue to live in state ofchronic hunger and food insecurity. Unfortunately, efforts to improvetheir livelihoods must now unfold in the context of a rapidlychanging climate, in which warming temperatures and changing rainfallregimes could threaten the basic productivity of the agriculturalsystems on which most of the world’s poor directly depend. Butwhether climate change represents a minor impediment or anexistential threat to development is an area of substantialcontroversy, with different conclusions wrought from differentmethodologies and based on different data.