Geemail, Pope Francis is not the first pope to say Catholics have a duty to preserve the environment. It is seen to be part and parcel of the Genesis command to Adam regarding his dominion over the earth and the idea that it still belongs to God and future humans so you can't just dump on it with a devil-may-care attitude. That's all I'll say about the religious angle.
The 'kawa' angle, I'm no expert, but when I see upwards of 90% of scientists telling you one thing about a phenomenon, I feel that to rubbish it I must have very good reasons, like SUPER, SUPER good reasons.
Also, lots of 'opposition'/'climate change denial' studies are funded by oil companies and other interest groups that do not want to be told not to pollute. If anyone should be allowed some leeway or grace period in this, it is very poor countries, assuming we actually start industrialization, and it should be limited in a way, there should be some kind of deadline to when we are to get in line in upholding all the same standards and some kind of limit in the stuff we do before deadline.
First world countries have no excuse.
By the way, Africa will be hardest hit. Lets just pray, my friend. Things are going to be thick. So don't support factions in first world countries that rubbish climate change. We will all suffer but they will not suffer as much as Africans despite being the actual culprits of the problem.