Âé¶¹´«Ã½

Earth

Atlantic hurricane frequency doubled last century

By Jeff Hecht

1 August 2007

HERE’S a conundrum. If global warming is indeed responsible for the increase in hurricane frequency in the North Atlantic, then how come we’ve had only one tropical storm and one sub-tropical storm so far this year? In 2005, there were four tropical storms and three hurricanes before the end of July.

Don’t be fooled. It’s not unusual for this time of year to be quiet, and most years July passes without a single tropical storm, says Greg Holland of the National Center for Atmospheric Research in Boulder, Colorado. However, we are about to enter the busiest part of the season: “Come 10 or 15 August, it all goes mad.”…

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