The planet is spinning at 1000mph, traveling round the sun at 67,000 mph and our little cluster of planets is traveling around the galaxy at approaching 2,000,000 mph - what could possibly go wrong ? I am only surprised that our climate is as stable as it is, we may just be going through a 'warm patch' in space, also it only needs a small change to the tilt of Earths axis to make a big difference to the climate, and that tilt changes by 'progression' over time and also wobbles like a spinning top does when it slows down or gets disturbed...