Changes

The film, Merchants of Doubt, was shown at film festivals in late 2014 and in March 2015 began showing in wider release. It documents how the tobacco playbook of peddling doubt about the deadly effects of cigarette smoking has been redeployed to sow doubts about the fact of climate changes underway, their causes, and solutions.<ref>http://www.nytimes.com/2015/03/06/movies/review-merchants-of-doubt-separating-science-from-spin.html</ref>