If something is not on faith and morals, we do not have to hold it....such is the Infallibility Doctrine.
Period.
Just watch this....
http://www.churchmilitant.com/news/article/breaking-reportpapal-encyclical-a-first-look
Fr. Z., is also making comments, so I do not have to do so, (whew!)
Here is one good article among many.
http://wdtprs.com/blog/2015/06/laudato-si-75-and-77-creation-has-a-creator/