Therehasbeenagreatincreaseinthenumberofnaturaldisasters...
问题详情：Therehasbeenagreatincreaseinthenumberofnaturaldisastersoverthepastfewyears，anditisreportedthatglobalwarmingandclimatechangecouldcauseevenmoredisastersinthefuture．Someoftheworld’sleadingcitiesar...