Censors at LinkedIn have permanently banned the CO2 Coalition’s Executive Director, Gregory Wrightstone, from the social media site after he presented data drawn from peer-reviewed data used by the preeminent promoter of the narrative that man-made global warming threatens the planet— the U.N. Intergovernmental Panel on Climate Change (IPCC). The posts were of two charts. One showed that carbon dioxide levels were nearly 6,000 parts per million (ppm) 600 million years ago when many animal life forms first appeared in the Cambrian Era. Another illustrated a 140-million-year decline of CO2 levels — from 2,500 parts per million (ppm) to the current 420 ppm. As noted philosopher of science Karl Popper said, “Democracy (that is, a form of government devoted to the protection of the open society) cannot flourish if science becomes the exclusive possession of a closed set of specialists.”