BLAST FROM THE PAST Three million years ago, Earth’s climate was so warm that the High Arctic supported forests (illustrated) in which camels and other animals roamed.
https://www.sciencenews.org/article/what-pliocene-epoch-can-teach-us-about-future-warming-earth
Hyenas lived in the Arctic during the last ice age, study reveals
https://www.earth.com/news/hyenas-arctic-last-ice-age/
Climate change is obviously real. I couldn't prove to someone that the combustible engine fueled by petroleum is or is not effecting the Earth's climate. It is pollution and therefor needs to cease. I prefer clean air, clear drinking water, and clean soil to grow food.
Just because the Earth is warming up is no evidence that life is going to end. Just because icecaps are melting does not conclude that we are all doomed. At one time that ice was not there and life flourished there.
Either way, the Watchtower will no miss an opportunity to quote any non-Watchtower source as an appeal to authority, but ONLY if it echoes their Watchtower beliefs.