Besides, it all depends on the dates picked: 1998 was anomalously hot because of an exceptionally strong El Nino, which always warms up the weather. Using it as a starting point produces a very different result than choosing the much cooler 1996, 1997, 1999 or 2000. On any long-term basis, temperatures have risen fast.
Well, actually, that\’s part of the argument. If you start in 1200 a lot of people rather think that you get a different answer. So it really depends on what you consider to be \”long-term\”.