Why would a pope do such a thing?

I have a few busy days right now and also people in town, so my energies are divided.

However, I bring to your attention the fact that, other day, with other religious leaders Francis signed a document about “safeguarding nature” in advance of some gassy climate confab in Scotland.  Antonio Socci says that the 2350 word document has not a single reference to God or a creator or creation.

I have to ask myself: Why would a Pope sign such a document?

On the other hand, Francis also appointed Jeffrey Sachs to the Pontifical Academy of Social Sciences.  Jeffrey Sachs.

I have to ask myself: Why would a Pope make such an appointment?