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Volcanic ash grounds Heathrow, Gatwick flights in Britain
MORE than 250 flights to and from London's Heathrow and Gatwick airports were grounded by volcanic ash from a volcanic eruption in Iceland. Many of the cancelled flights - more than 150 to and from Heathrow, and 108 flights to and from Gatwick - were transatlantic services, while Aberdeen, Edinburgh and Glasgow airports in Scotland were shut altogether. The ash has also halted flights across nearly all of Norway and northern Sweden, authorities said.


The Laki eruption (about 100 Ks from the current eruption) in 1784,

In North America, the winter of 1784 was the longest and one of the coldest on record. It was the longest period of below-zero temperatures in New England, the largest accumulation of snow in New Jersey, and the longest freezing over of Chesapeake Bay. There was ice skating in Charleston Harbor, a huge snowstorm hit the south, the Mississippi River froze at New Orleans, and there was ice in the Gulf of Mexico.[10][11]

More on climate effects of Laki eruption

There was an even bigger Iceland eruption 500 years earlier. These 2 eruptions coincided with the Dark Ages and The Little Ice Age respectively.
Posted by: phil_b 2010-04-15
http://www.rantburg.com/poparticle.php?ID=294672