The only thing murkier than the plume of ash spewing from Iceland's Eyjafjallajökull volcano may be its long-term implications to the planet, its climate and public health.http://www.usatoday.com/tech/science/2010-04-19-1Avolcano19_CV_N.htm?csp=hf
. . . In one significant episode in Iceland, the Laki volcano erupted in 1783 . . . The ash and gases released caused extreme weather across Europe and contributed to a continent-wide rise in deaths from respiratory diseases. If this eruption lasts anywhere near that long, scientists say, there is a risk it could melt glaciers that now cap the nearby Katla volcano, allowing it to blow its top and potentially pump enough ash into the atmosphere to lower temperatures worldwide.
Those who blame earthquakes and volcanoes on global warming have no idea what they're talking about - - they are independent phenomena.
And, in fact, any increase in earthquakes and volcanic activity could actually lower worldwide temperatures, offsetting the impact of man made carbon gases.