Worth noting that although this analysis is a good one, and helps calm down the knee-jerk responses of "global warming is a fraud", your comment does not contra

Worth noting that although this analysis is a good one, and helps calm down the knee-jerk responses of "global warming is a fraud", your comment does not contradict the linked article, which does not argue that climate change is not real, but rather than GCMs are a tool of limited utility for predicting climate change or forming policy guidance around mitigating climate change. The article does not discount the utility of GCMs in furthering our understanding of the climate in general, but reaches the conclusion that existing models are of limited utility when attempting to forecast the affect of policy changes (or the lack thereof) on climate trends.