Climate Models Blown Away By Water Vapor | The Resilient Earth

What does this have to say about all of those general circulation models (GCM) used by the IPCC to divine the future of Earth's climate? It means they can't accurately simulate our planet's climate engine because they don't know how the atmosphere works. If they don't know how climate works today, how can they tell us what the climate will be like 100 years in the future? The predictors of future climate disaster may as well be using tarot cards.