Extreme weather events have increased and were “very likely” caused by global warming
Yet more evidence (as if any were needed)…
“Extreme weather events over the past decade have increased and were “very likely” caused by manmade global warming, a study in the journal Nature Climate Change said on Sunday.
The past decade was probably the warmest globally for at least a millennium. Last year was the eleventh hottest on record, the World Meteorological Organization said on Friday.
Extreme weather events were devastating in their impacts and affected nearly all regions of the globe.
They included severe floods and record hot summers in Europe; a record number of tropical storms and hurricanes in the Atlantic in 2005; the hottest Russian summer since 1500 in 2010 and the worst flooding in Pakistan’s history.”
This all comes at the same time that the World Meteorological Organization is reporting human activity kept global temperatures close to a record high in 2011 despite the cooling influence of a powerful La Nina weather pattern.
Click the link below for more info:
World Environment News – Link Builds Between Weather Extremes And Warming
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Weather is driven by air pressure (temperature and moisture) differences between one place and another. These pressure and temperature differences can occur due to the sun angle at any particular spot, which varies by latitude from the tropics. The strong temperature contrast between polar and tropical air gives rise to the jet stream. Weather systems in the mid-latitudes, such as extratropical cyclones, are caused by instabilities of the jet stream flow.*
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