An aide to President Donald Trump once compared the treatment of the Jewish people under the Nazis to what he said was the “demonization” of carbon dioxide, in an attack on the science of man-made climate change.

“ ‘The demonization of carbon dioxide is just like the demonization of the poor Jews under Hitler.’ ” — William Happer

William Happer, who serves on the National Security Council as Trump's deputy assistant for emerging technologies, made the argument in a 2014 CNBC interview. The comment resurfaced in the New York Times on Monday, in a story about how the administration is hardening an attack on climate science.