On the other hand, heat waves, droughts, floods, and other disasters induced by climate change are destroying crops and reducing the supplies of grains on world markets. In recent months, massive droughts have struck the grain-producing regions of Russia and Ukraine, and enormous floods have hit Brazil and Australia; now, another drought is menacing northern China’s grain belt.
一方面，需要食品养活的人口越来越多，而且他们的平均购买力也不断增加。另一方面，由气候变化导致的酷热、干旱，洪水及其他自然灾害都在破坏农作物并减少全球粮食供应量。最近几个月大规模干旱袭击了俄罗斯和乌克兰的产粮区，巴西和澳大利亚也遭遇了大洪水，与此同时，另一场干旱又开始在中国北部的产粮地带肆虐。