Michael MacCracken In “The Real Truth about Greenhouse Gases and Climate Change: Paragraph-by-Paragraph Comments on an Article by Dr. William Happer,” Dr. Michael MacCracken, Chief Scientist for Climate Change Programs at the Climate Institute in Washington, DC, takes on the prominent ‘skeptic’ Princeton physicist and Marshall Institute board chairman with a detailed and illuminating rebuttal. … Continue reading MacCracken v. Happer: The Real Truth about Greenhouse Gases and Climate Change