Certainly any reasonable person can change their mind as new evidence is gathered, but in the case of globalwarmercoolers, they are not driven by evidence but the political winds. Global cooling was cool in the 70’s but it went out of style for global warming. I have no doubt global cooling will return when its political time has come again.
Global warming and cooling is like the fancy double-brested suit - falls in and out of style. Now the Global Climate Change is the like always-stylish single-brested suit - never goes out of style.
This prof is a nut job and I hope that the director of this movie depicts him as such.