If you have a leaky roof in your house and try to fix it, or hire someone to do so, are you worshipping your house, or merely taking care (stewardship) of your home?
That is why God so gravely warned us not to worship the creation, rather than the Creator. There is idolatry of all sorts, but humanity's biggest problem was not worshipping roofs, but the sun, stars, and the earth. God gave us those things, but they are not to be worshipped. The "climate change" crowd clearly is pagan in origen. "Climate change" is not even settled science! But that is what the pope chose to support in a very, very public way. That is why the pope's declaration smacks of paganism.