Thanks bluesdave, yes, the more I read the less I know for sure.
Watching Nova's show on Supervolcanos last night, they were throwing our numbers like 75k years ago, one went off in the South Pacific. The magma blown out into the air was the equivalent of the water flowing down the Mississippi in two years time. The sulfuric acid cloud killed forests and critters all over and lowered the temperature of the oceans by 10 degrees. And we have two of those suckers in the USA. Damn, that makes our pollution look like a pee hole in a snowbank.
