As usual, you are engaging in a fallacy, i.e. a No True Scotsman fallacy. Let's correct that and focus on the belief that you do have in Climate Change. Why do you believe that the faith that you do have is correct?
The question was "Why should any rational adult believe in the Climate Change religion?" You never provided any rational basis for any belief in Climate Change. In fact, you never provided any unambiguous defintions that didn't violate science, math and logic, for the terms that you used.
You are scientifically illiterate and you don't have any science-based beliefs. All of your beliefs are based on violations of physics.