By Thomas D. Williams, Ph.D., Breitbart - U.S. climate czar John Kerry met with Pope Francis in the Vatican this weekend... The pope “is one of the great voices of reason and compelling moral authority on the subject of the climate crisis,” Kerry told Vatican News. “He’s been ahead of the curve. He’s been a leader. His encyclical Laudato Si is really a very, very powerful document, eloquent and morally very persuasive.”... His Holiness “speaks with a moral authority that is quite separate,” Kerry added. “It’s unique and we need all the power we can bring to the table.”... Last January, Kerry told the BBC that humanity has only nine years to save the planet from man-made climate change.