The Vatican’s new encyclical is being hailed as one of the most important statements on climate change ever produced by the Catholic Church. But it’s also being decried as misplaced, by some who say Pope Francis- a man of faith- has no business discussing matters of science… ThinkProgress asked three climate scientists to weigh in on three specific passages in the encyclical that get wonky about the science of climate change, and got varied answers. However, all three said Francis (who himself has a technician’s degree in chemistry) was correct that humans are causing potentially catastrophic climate change via greenhouse gas emissions… “Based on what I have seen of the science in the encyclical, most climate experts would find little to disagree with,” said Anthony Broccoli, a professor of environmental sciences at Rutgers University.