I'm not Catholic and so have no idea whether the Pope's supposed infallibility matters or not. To me, it only matters because some people are going to believe that he is when clearly he is not, on the issue of "climate change." I suppose some of it could be blamed on bad advice from his advisors, but his more recent remarks make it clear that he actually believes that Man can destroy what God has made. I'm sorry, but that is a stretch of faith too far and too wide.
First of all, just calling it "climate change" is a lie, because every piece of scientific "evidence" mustered by the True Believers only applies to Global Warming, not "change." And that lie is BASED on a lie, according to a number of scientists who have examined the data. When you consistently "correct" the raw data to show each year "the warmest on record," the data is worthless as evidence of anything other than "evidence tampering." Meanwhile, the satellite data—unfudged and truly "global"-- shows almost 19 years now of essentially no global warming and the computer modelers themselves admit that 20 years of that would "cause them to question the accuracy of the models." Those significantly erroneous models, meanwhile, absent some Divine Revelation we lack, are the ONLY "evidence" of coming catastrophe. And even if they were right, according to the US EPA in trying to justify Obama's new "Clean Power Plan" regulations, a radical reduction in US CO2 would reduce global temperatures by a negligible 0.02 degrees! So, if the acolytes of the great Church of Global Warming are right, they are wrong by their own confession! You can chalk all this up to a hoax, or a scam (billions of dollars are involved), or just a grossly misguided and irrational cult, but infallible it is not. Hopefully there will be an epiphany in Paris.