Give or take 1/10 of a degree, (I think) the global temperature has risen about 1.5 degrees over the last 100 years. So I wouldn't expect the dramatic shift we have been seeing. Some of this board have pointed out that the slowing down of the Labrador/Gulf Stream circulation has warmed the greater NYC by as much as 4 degrees over the last decade, or so (yes I understand about the expanding heat island effect). That, plus the stubborn Pacific Jet has been raising this forums temperatures to more than noticeable levels. Is the position and extent of the Pacific Jet just a normal variation, or is global warming causing it to be fixed where it is? Has China largely contributed to this stubborn hot spot in the Pacific, since a great deal of the carbon emissions have been transferred to that country over the last 30 years?