sorry, my bad, but I meant ozone as in when heat enters the earth's atmosphere some of the heat is deflected some some of it passes through.
but they still exist and are still damaging the ozone. That is why the hole above the antartic region is getting bigger.
But still the volcanoes still produce CO2 and hence CO2 is a major contributor to global warming. Yes I have to agree with you that the ozone layer does not contribute much and yes burning of fossil fuels do contribute to global warming more than volcanoes.
But the problem is when the disaster happens (earthquakes) – buildings are destroyed and things explode, thus releasing harmful gases into the air. Then when aid arrives, all those vehicles containing food and medical supplies arrives. Heavy helicopters and ships burn fuel as well. And then the clean-up, trucks bulldovers, trucks and cranes all use huge amounts of fuel and diesel. Yes the effect is in-direct but still earthquakes cause global warming.