Coal isn't the problem - how we use it is. The solution lies in cleaner technologies and better utilization.
Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.
The success of everything depends on intuition, the capacity of seeing things in a way which afterwards proves to be true, although it cannot be established at the moment.