[glatt]

Originally Posted by regular.joe

I have a new project for myself though, I want to find out how many tons of waste products are put into the atmosphere by man made stuff, autos, planes, factories, homes etc...and put that into terms of how many volcanoes would have to erupt per week to match that output per week.

I tried doing this myself a few years ago and posted the results here in the Cellar.

Originally Posted by glatt

volcanoes produce approximately 200 million tonnes of CO2 per year, while mankind produces about 26.8 billion tonnes (in 2003.) Even the largest eruption in recent times, Pinatubo in the Philippines, produced between 42 and 234 million tons of CO2. (1, 2) so even that year, volcanoes didn't come anywhere near producing the CO2 that mankind did.