Oro,
That is an interesting point and one that could lead us into a lengthy discussion about climate changes being based on the earth's axial and orbital rotation over a 41,000 year cyclical pattern but the point that I was raising is that this is really a normal, naturally occurring cyclical pattern. Its just that the pattern's periods are so long (time wise) in scope that the written record really doesn't cover it! And as everyone knows Milutin Milanković's work has its critics but with the deep sea core sample exploration his theory has been given greater credence.
NOAA 30-year “Climate Normals” report uses terms like “above normal” or “below normal,” and its referring to average temperatures and precipitation figures compiled from daily, monthly and yearly readings at thousands of locations across the country over the last three decades. The 'normals' that were set to expire are based on conditions from 1971–2000; the latest ones start in 1981 — and unlike their predecessors, include the first decade of the 21st century, which was among the hottest on record globally. The report also excludes the 70s, which were particularly cold in many areas. What you see is that the new normal temperatures for the nation are higher than the previous set.
So I guess the easiest way for me to say this is ... average temperatures are gradually rising and uh ... because ... uh ... Fuck It ... the Word is going to End in 2012 according to the Myans so who gives a Damn
DD