he is an atomic physicist.  Happer’s record of getting scientific papers published in leading journals on climate change science is at, or very close to, zero. Simply, he knows a lot about some stuff, but he is not a climate scientist.  While he has a distinguished career as an atomic physicist, his views on climate science are outnumbered by all the credible evidence, all the credible science agencies and are also being laughed at by the Earth’s thermometers and its melting ice sheets and glaciers. Prof Michael Oppenheimer has scores of articles on climate science in leading journals going back to the mid-1990s. He’s a climate scientist … at Princeton. So what does Oppenheimer think of his colleague? “With respect to climate science and scientists,” Oppenheimer told me by email, “[Happer] is not only unknowledgeable but appears to have become unmoored.  (from the Guardian, Feb 21 2017