Arid regions are prone to lower soil moisture levels, rendering lands unsuitable for crops. Droughts and floods, which disrupt food production, are more acute and frequent in semi-arid and sub-humid regions.
Impoverished regions are most vulnerable to food instability. But adaptation strategies - such as irrigation to improve food production - cost money.
Food insecurity sparked by climate change has already affected an estimated 13 million people. Climate change complicates resource management.
At the end of the day, there is sufficient food available for the world's population - it is simply a question of access to and management of food resources. Enhanced food production and distribution systems are required. By investing in transportation and communication infrastructure, it is possible to ensure better food security.