Time: Republican presidential candidate Rick Santorum has called on Pope Francis to "leave science to the scientists' in an effort to avoid supporting the pope`s message on protecting the environment and fighting climate change. With the pope's upcoming encyclical, or letter, on the subject set to be released in the next two weeks, it`s unlikely that this will be the last time we hear a prominent Republican use this line. One big problem: Pope Francis is no scientific illiterate. He has a degree in chemistry...