It’s possible to write this off as just an annual fluctuation in the weather, researchers have another explanation: climate change.
The year 2012 marked a record for loss of Arctic sea ice, according to The Ecologist website:
The Arctic ice loss adds heat to the ocean and atmosphere which shifts the position of the jet stream--the high-altitude river of air that steers storm systems and governs most weather in the Northern Hemisphere.
Shifts in the jet stream can have massive effects on the weather patterns of the Northern hemisphere, Jennifer Francis, of the Rutgers Institute of Coastal and Marine Science, told the Ecologist:
"It allows the cold air from the Arctic to plunge much further south."And of course, the end result of a shifting jet stream and changing ocean temperatures is something scientists have been saying on repeat for a while now: more extreme weather events.
The heavy snowfall and freezing temperatures which have marked March 2013 across the Northern Hemisphere are in stark contrast to March 2012, when many countries experienced their warmest-ever springs. The hypothesis that wind patterns are being changed because melting Arctic sea ice has exposed huge swaths of normally frozen ocean to the atmosphere would explain both the extremes of heat and cold, say the scientists.
"We are going to have more floods, we are going to have more sea surges, and we are going to have more storms," says Sir John Beddington, a scientific advisor to the U.K. government. "These are the sort of changes that are going to affect us in quite a short timescale."
Another answer to this, according to Wikipedia is:
A volcanic winter is the reduction in temperature caused by volcanic ash and droplets of sulfuric acid obscuring the sun and raising Earth's albedo (increasing the Earth's reflectivity of solar radiation) after a large particularly explosive type of volcanic eruption. Long-term cooling effects are primarily dependent upon injection of sulfide compounds in aerosol forms into the upper atmosphere—the stratosphere—the highest, least active levels of the lower atmosphere where little precipitation occurs, requiring a lengthy time to wash the aerosols out of the region. Stratospheric aerosols cool the surface and troposphere by reflecting solar radiation, warm the stratosphere by absorbing terrestrial radiation, and when combined with anthropogenic chlorine in the stratosphere, destroy ozone which moderates the effect of lower stratospheric warming. The variations in atmospheric warming and cooling results in changes in tropospheric and stratospheric circulation.
All I know is that it looks like many of us will go from Winter straight into Summer and it sucks! Not a thing we can do about it but I cannot find a satisfactory answer to what is going on.
I want SPRING!!!!
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