Mr. Speaker, I thoroughly enjoyed the speech given by my hon. colleague from Calgary.
I guess there is a little fact that is well known and that is, there are many scientists on both sides of this argument. One of the most interesting things I heard recently was a scientist who said that for years and years, if we tracked the mean temperatures at different locations in North America, which is where they have the records, we would see that the temperatures go up and down. I wish we could use graphic aids in the House but I guess my hands are the only props I am permitted. The temperatures are cyclical. It is true that from time to time, over a 50 year or up to an 80 year cycle, the temperatures will gradually go up and they will turn around and go down again.
The scientist said that what distressed him the most about some of his scientific colleagues was that they were now willing to somehow predict that the cyclical nature of temperature changes would be abandoned and the current uphill trend would become a straight line extrapolation. He said that there was no scientific basis whatsoever for that extrapolation, for that curve to go up and down. He said that it was unjustified to say that the current uphill increase in the temperatures would not keep going up invariably. I would like my colleague to comment on that type of science.