This is responding to the letter Michael Vollmer sent in on Thursday. If anything, the Southern California fires made it clear to me that global warming is no joke. Not because it had anything to do with starting the fires, but because the fires created a large-scale global warming experiment. Do you recall how it got really, really, really hot right after the fires started, right in the middle of October? Do you remember how hazy the sky was? And did you look at any of the satellite images showing smoke completely covering everything from San Diego all the way up here? So when a big forest fire releases a large amount of greenhouse gases into the atmosphere, temperatures go up. That must mean if we release large amounts of these same gases by other means and allow them to build up over time, temperatures will rise and climates will change. Coincidence? I think not.