I wish I knew more about what is going on, and why. It is time to consult once again the learned astrophysicist, Piers Corbyn. Now Piers has a very good record of forecasting the weather. He has been bang on about these cold winters. Like JMW Turner and the Aztecs he thinks we should be paying more attention to the Sun. According to Piers, global temperature depends not on concentrations of CO2 but on the mood of our celestial orb.