The New Yorker ran an article about Rubio about two weeks ago in which he was asked questions about climate change. In a nutshell, his response was that his experts told him that the measures being proposed to limit global warming would not work, and would cause significant economic dislocations. As a result, the better course of action was to do nothing.
The opinions of Marco’s “experts” are inconsistent with the scientific consensus, which logically leads one to ask who they were. I am guessing they were either spokesmen for the Koch brothers or the man in the mirror, in which case, notwithstanding the modesty in his previous disclaimers, one would have to conclude that Marco is, in fact, a scientist.