飓风“卡特里娜”横扫美国南部墨西哥湾沿岸,至9月6日止,它已使数以十万计的人流离失所,逾两万人失踪。图为9月2日新奥尔良地区的难民在领取救济食品时的情景。这场大灾难不单是天灾,还显示了人类对江河过度开发和没有对它们进行妥善管理,以及有关当局缺乏应付气候灾难的措施等 Hurricane Katrina swept across the Gulf of Mexico in the southern United States. As of September 6, it has displaced hundreds of thousands of people and left more than 20,000 missing. The picture shows the refugees in the New Orleans area on September 2 when they received relief food. This catastrophe is not only a natural disaster, but also shows that humans have over-exploited rivers and have not properly managed them, and that relevant authorities lack measures to deal with climate catastrophes.