The Church of Catastrophic Anthropogenic Gorebal Warning seems to be doing just fine, thank you very much.
It has everything: They are their own gods. They have their priests and priestesses, rituals, dogmas, sacrifices, etc.
"When men chose not to believe in God, they do not thereafter believe in nothing. They then become capable of believing in anything." - Emile Cammaerts, The Laughing Prophet: The Seven Virtues and G.K. Chesterton