A federal judge has ruled that Environmental Protection Agency head Scott Pruitt must produce evidence to back his claims that humans are not the primary cause of climate change. The lawsuit stems from a Freedom of Information Act request filed by a watchdog group which sought to have the EPA cite any studies that might be used to corroborate Pruitt’s claims, which defy nearly all available climate science. The FOIA request came after Pruitt made this remark on CNBC in March of last year, not long after his confirmation as EPA administrator.

Scott Pruitt: “No, I think that measuring with precision human activity on the climate is something very challenging to do, and there’s tremendous disagreement about the degree of impact. So, no, I would not agree that it’s a primary contributor to the global warming that we see.”