//You need to use science to argue your case. //

Of course ... so where is his published scientific paper that makes a case for his position?

// I'm not convinced the the IPCC climate computer models is able to predict weather 50 years down the road.//

Here is a recent paper from a few folks I know ...

Titled: Evaluating the Performance of Past Climate Model Projections

https://eps.harvard.edu/files/eps/files/hausfather_2020_evaluating_historical_gmst_projections.pdf

They looked at models from as far back as the 1970s ... 50 years ago ... and compared what the models predicted with the past 50 years of actual observations ...

From the abstract "We find that climate models published over the past five decades were skillful in predicting subsequent GMST changes, with most models examined showing warming consistent with observations"

You might not believe that such models can predict 50 years ahead ... yet here we are 50 years later, and the models have been right.

Side Note: The full paper is there, no paywall.