The current crisis in the supply of rice has finally hit us here at home (From Wal-Mart quotas to a 'frenzy' in Vancouver, Asia's rice crisis goes global). The cause for the shortage includes increased demand from developing countries like India and Japan, rising input costs, limited growing areas and I imagine market speculation. But the factor that is most worrying is poor crop yields in countries like Australia that has also been a contributor to stocks hitting a 20 year low. If poor crop yields can be attributed to climate change -- and it's reasonable to assume that this is a possibility then this should be a clear signal that we need to act immediately to develop a plan to reduce GHG emissions AND develop mitigation strategies. Regional and local food independence is one strategy. Pursuing new food technologies including genetically modified foods should be another.
What we shouldn't do is discount this current crisis as a complete anomaly. That would be a recipe for disaster.