Climate Change and Clean Air Emissions - Iceland!

I have a question - if naturally occuring forrests can act as a carbon sink for which European countries get clean development mechanism credits, shouldn't a naturally occuring volcano that emits more GHG (CO2, Methane, and countless other GHGs) and criteria air contaminants count against the country's emissions?

The fools should have bought the volcano stopper I invented in fourth grade. It was just like a plug in the bathtub- it it goes in a volcano!