True, of course, but it's also worth remarking that there are huge spatial differences in lightning frequency due to the specific mechanisms causing thunderstor

True, of course, but it's also worth remarking that there are huge spatial differences in lightning frequency due to the specific mechanisms causing thunderstorms. I live in the U.S., and you rarely see t-storms on the Pacific coast here because the nearby Pacific Ocean is cool (due, in turn, to cool water brought down by the clockwise-turning North Pacific Gyre). But t-storms are very common in the Midwest and South due to the presence of warm, moist air there.