The violence and frequency of hurricanes will increase with global warming the government ' s chief scientific adviser warned today . sir david king issued his warning as hurricane rita menaced america ' s gulf coast and the heart of the us oil - refining industry hard on the heels of hurricane katrina which devastated the city of new orleans and surrounding areas 据英国每日邮报9月23日报道，前不久“卡特里娜”飓风刚刚重创了美国新奥尔良市及其周边地区，接踵而至的丽塔飓风正使该国墨西哥湾沿岸以及炼油业的心脏地带面临严峻威胁。
