. . "In doing so, you get rid of some of the noise (weather), and will get a clearer resolution of the underlying trend, which is upwards over the series, including the last ten years.But even if you start from 1998 (a statistically incautious thing to do), the trend is still warming.http://tamino.wordpress.com/2007/08/31/garbage-is-forever/You can, as the author of the above link did, take the start d" . .