This is an interesting article, but I don't think it's saying what the register writer or climate change deniers think. Casting my mind back to primary school,

This is an interesting article, but I don't think it's saying what the register writer or climate change deniers think. Casting my mind back to primary school, we all learned that Earth's axis wobbles -- http://en.wikipedia.org/wiki/Axial_precession http://en.wikipedia.org/wiki/Axial_precession -- and that today the north has hotter summers than the south because the northern hemisphere's summer is mainly driven by the axial tilt, but reinforced by orbital eccentricity (i.e. the Earth is closer to the sun during Summer, further during Summer). The degree to which tilt varies and coincides with distance from the sun will drive the intensity of Summer (in a given hemisphere), and this article argues (with evidence) that this effect has been stronger than the effect of greenhouse gases over the last 2000 years. I.e. that Summer in Europe has been getting cooler over the last 2000 years owing to axial precession. Not that Summer has gotten cooler on average over the entire Earth, or that the Earth has gotten cooler on average, or anything else. I am neither a physicist nor a climate scientist.