It is a verified fact
That the climate changes? Okay. What we need to do (if anything) and what will result from our actions or inactions is not fact, it’s theory or hypothesis.
Why you decide to reject these 99% of scientists but happily accept scientific consensus when it comes to medical care I have no idea.
The standards of acceptance are vastly different. For goodness sake, there’s a vaccine (actually multiple) which has been proven to be safe and effective but haven’t yet been approved yet, in the middle of a deadly pandemic, because it hasn’t yet reached their rigorous and strict standards for proof of safety and efficacy.
The cause and long term effects of climate change? Conjecture.