[Source.](https://behindtheblack.com/behind-the-black/essays-and-commentaries/all-climate-models-continue-to-be-wrong-overstating-warming-to-significant-degrees/) > According to a new analysis comparing actual satellite observations of the climate since 1979 with all the climate models used by the IPCC and global warming activitists, it appears that every single climate model continues to overstate significantly their predictions of warming, with that error increasing with time. From the paper’s abstract: >> Warming of the global climate system over the past half-century has averaged 43 percent less than that produced by computerized climate models used to promote changes in energy policy. In the United States during summer, the observed warming is much weaker than that produced by all 36 climate models surveyed here. >> While the cause of this relatively benign warming could theoretically be entirely due to humanity’s production of carbon dioxide from fossil-fuel burning, this claim cannot be demonstrated through science. At least some of the measured warming could be natural. Contrary to media reports and environmental organizations’ press releases, global warming offers no justification for carbon-based regulation.