ec In this case the discussion was inefficient because you failed to do even minimal due diligence and try to find the answer to what deletion discussion yourself which you could have trivially done avoiding a waste of both my time and yours After ec the answer is that this discussion is inefficient because of blind stubborness on your part youre wrong and yet incapable of backing off As for the A in AGW read global warming Global warming is the increase in the average temperature of Earths nearsurface air and oceans since the midth century and its projected continuation  If you want it to mean something else you may be looking for climate change Perhaps the question should be what exactly are you hoping to achieve here Youre certainly going to have to actually understand the subject rather better than you are demonstrating if you want to make anything better