One of these two is a climate authority.

Dr. Roy Spencer is a climate scientist. He believes CO2 helps warm the planet. He believes the current shift in climate is partially man-made, but that it is Mostly natural, and pretty much benign. For this reason, he is called a climate 'denier' and as such is not to be trusted.

The pope on the other hand is a Leftist from South America who has spent his entire life focusing on people (as he should, too bad he's got the Wrong reasons and holding the Wrong post in life), and who's knowledge of climate is very likely less than mine (degree geology, 30 years following this, last ten years doing substantial reading / learning, with a long way to go), possibly even less than that of scythemantis- and that's saying a lot. Yet he is now an 'authority' on climate, which means the current shift in climate is YOUR fault, and you MUST give up all your hopes, dreams and especially your retirement money, for the sake of the Earth's future.

You know there's something wrong when atheists are suddenly happy with the pope.

Which one do You trust?

NOTE: if you are going to bring up Dr. Spencer's religious beliefs, DON'T. Instead, PROVE HIS PHYSICS WRONG. If you cannot argue on the basis of the science, drop dead errrr please don't bother me.

Update: if a skeptic's faith is all you can scream about, very definitely Drop Dead.