Dan Winterland
Lies, Damn Lies and Statistics indeed.
Data from Middleton (1998), amounts in millions of tonnes of carbon per annum
Combustion of fossil fuel: 6000
Land use change (deforestation and biomass burning): 1600
Metamorphism and volcanism 120
Weathering: 220
Probably serves to show how much misinformation there is out there.
DrDave