In the Executive Summary, she says “…current GCMs (Global Climate Models) are not fit for the purpose of attributing the causes of 20th century warming or for predicting global or regional climate change on timescales of decades to centuries, with any high level of confidence. By extension, GCMs are not fit for the purpose of justifying political policies to fundamentally alter world social, economic and energy systems.” 

In my opinion Global Climate Models are nothing more than Magic Eight-Balls or Horoscopes with Numbers. Read Ms. Curry’s paper.