New Scientist: By 2100 southern England will be drenched by five times as many sudden summer deluges as it is today, probably causing more flash floods, according to an advanced climate model. Other parts of the world are likely to experience similar increases in downpours, and global warming will be to blame. Sudden heavy downpours cause many floods, such as the flooding of Boscastle in Cornwall in 2004 (see picture, above right). The new finding comes just months after some of the worst recorded floods in the...