I think that from the 195 countries that took part in the negotiations 148 have signed and the others are going to join the agreement in a different way. Not sure what that means. Well ofc Syria did not sign but if the war were to end tomorrow it would be the best place to start building renewable since it will be build from scratch. Trump's goal might actually be to lower the stock prices of the renewable companies and buy himself in, if he is the business man he says he is. It is all about money, even "saving" the world.