Melbourne is in the grip of a cold snap; the high all day, in the middle of November, was 11.3 degrees Celsius. Everyone reading this - please go out and buy an enormous gas guzzler , and drive it to work very very very slowly, in a low gear, stopping and starting as much as possible. Bonus points if you smoke your tyres a bit. Three million Melburnians, 200,000 Hobartians(?), and 325,000 Canberrans will appreciate your efforts to fight global cooling.