And people do in fact need to CARE about the earth and the future of humanity if this is to be solved.
I have done more real good for the Earth than most posters here will in a lifetime.
I am also strongly against the AGW madness to "do something", because I can see how none of it is based on science, only the "truthiness" flavor or science.
I can see the direction it is heading with terrible ideas that basically end in terraforming our own perfectly working Earth ecosystem.
I can also see everyone ignoring the only real danger there is to humanity, and that is an ice age - not a mild warming that improves agriculture and does little else.
I can see people distort natural changes in climate over time into terrible dangers for personal and political gain. In the end I suppose that matters little, it's just a slightly different monkey on the top of the hill at the end of the day, but the part of me that dislikes con men is unhappy to see such a large con fool so many rubes until they loose much before catching on.
If people actually cared, they would wake up and call out the charlatans. If the Pope's paper has that effect truly, it will be good though not the direction he intended.