The closed mind is a common trait of Harper and Trump supporters and Global Warming Deniers. Trying to persuade them with facts and reasoned arguments often backfires. It simply cements their Faith Based Views.

https://www.washingtonpost.com/opinions/why-facts-dont-matter-to-trumps-supporters/2016/08/04/924ece4a-5a78-11e6-831d-0324760ca856_story.html?utm_term=.10d6354edb46