"Climate Change and Food Security in China" warns that China will lose its self-sufficiency in food production as early as 2030 because of climate change. The solution? Take immediate action to cut greenhouse gas emissions and adopt policies encouraging more climate-friendly ecological agriculture. Greenpeace commissioned the report, which was authored by Chinese climate experts and agronomists.
China, btw, has allocated 0.5% of its $570 billion stimulus spending to water projects. That's not much compared to the troubles they have.