Chalenge:
"Angus: Your volcano is just lightly venting pressure. The eruptions cited are along the lines of Mount Saint Helens. The end-all effect of Yellowstones caldera eruption might be more destructive for man but the planet will survive even that."
I mentioned the one since it's only 50 km away. I just have to move some 200 km to get to the source of the greatest eruptions of earth for some thousands of years, - emissionvise. The effect was cooling on the Northern hemisphere, all the way down to Egypt, lasting years as a total. It altered the Sunset view in the USA and was mistakenly thought to be the one who is my neighbour:)
I was actually there up close during one eruption, - the only time I saw lava streams and such. Didn't give me a headache, but a day downtown in a big city will....
Anyway, the 1% must be an average of some years (didn't look), but its still just ONE PERCENT of HUMAN co2 emission, and guess where it's heading??? Wait and see....
Oh, and if Yellowstone caldera goes poppy it's big.
Sources for the other one, -
http://en.wikipedia.org/wiki/LakagigarA quote:
"Consequences in North America
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"
Some warming effect there
