Wow, the extensive comment section is eye-opening to me, in how little consensus there exists about the validity of models, line-fitting, and prediction.
I am amazed at the level of erudition in the comments section as well. Shows what a highly literate intellectual audience that part of the world must be. Had this article been printed in the Times, you'd have the usual republicans vs Krugman name calling and none of this scientific minutiae.
I feel like the real lesson I learned here was not about time series but about reading the comments section for any discussion involving global warming