It was actually a fact, not an ad hominem. You clearly know less than you think you do about GPS. Ironically, it seems like the mark of a contrarian to assume t

It was actually a fact, not an ad hominem. You clearly know less than you think you do about GPS. Ironically, it seems like the mark of a contrarian to assume that people are attacking you when they aren't and a lot of climate skeptics come off sounding that way to me. Furthermore, it seems you're still just launching your own arbitrary theories into the discussion and not responding to anything specifically wrong with the article.