Judith Curry is professor at the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology - The politically driven push to manufacture a premature consensus on human-caused climate change has resulted in the relative neglect of natural climate variability. Until we have a better understanding and predictive capability of natural climate variability, we don’t have a strong basis for predicting climate change in the decades or century to come. Whether the climate models are correct or whether natural climate dominates, it appears that the Paris agreement will turn out to be phenomenally expensive but ultimately futile in altering the course of the 21st century climate.