Let me state what the official IPCC prediction is: Sea levels could go up as much as three-quarters of a meter in this century, but there is a reasonable probability it could be much higher than that.

Education in our family was not merely emphasized, it was our raison d'etre ... In this family of accomplished scholars, I was to become the academic black sheep. I performed adequately at high school, but in comparison to my older brother, who set the record for the highest cumulative average for our high school, my performance was decidedly mediocre.

My physics teacher, Thomas Miner was particularly gifted. To this day, I remember how he introduced the subject of physics. He told us we were going to learn how to deal with very simple questions such as how a body falls due to the acceleration of gravity.

Suppose you had a small electrical fire and... a structural engineer [looked] at your home's wiring [and] reports that the wiring is "shot" and there is a 50% chance that your house would burn down in the next few years unless you replace all the wiring. The job will cost $20,000... so you get an independent assessment. The next engineer agrees with the first warning. You can either continue to shop for additional evaluations until you find the one engineer in 1,000 that is willing to give you the answer you want, "Your family is not in danger" or you can change the wiring.

I approached the bulk of my schoolwork as a chore rather than an intellectual adventure. The tedium was relieved by a few courses that seem to be qualitatively different. Geometry was the first exciting course I remember. Instead of memorizing facts, we were asked to think in clear, logical steps. Beginning from a few intuitive postulates, far reaching consequences could be derived, and I took immediately to the sport of proving theorems.

Switching to light-coloured roofs and roadways would have the equivalent effect on greenhouse gas emissions to taking one billion cars off the road for eleven years.

If other countries don't impose a cost on carbon, then we will be at a disadvantage...we would look at considering perhaps duties that would offset that cost.