It's always global warming...

Ok, so let me see if I understand this.

Killer hurricanes = global warming
No hurricanes = global warming

Ok, got it!

Global warming may spur wind shear, sap hurricanes
Tue Apr 17, 2007 6:02pm ET17

By Jim Loney

MIAMI (Reuters) - Global warming could increase a climate phenomenon known as wind shear that inhibits Atlantic hurricanes, a potentially positive result of climate change, according to new research released on Tuesday.

The study, to be published on Wednesday in Geophysical Research Letters, found that climate model simulations show a "robust increase" in wind shear in the tropical Atlantic during the 21st century from global warming.

Wind shear, a difference in wind speed or direction at different altitudes, tends to tear apart tropical cyclones, preventing nascent ones from growing and already-formed hurricanes from becoming the monster storms that cause the most damage.

The effect of global warming on wind shear is similar to the impact of El Nino, the periodic eastern Pacific warm-water phenomenon that tends to put a damper on Atlantic storms. The sudden development of El Nino was credited for an unexpectedly mild Atlantic season last year, when only 10 storms formed.


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