Climate activists have strong ideas about how the world will end, if we don’t change our ways. They also have new ideas for people to learn, and documents that they use to support their arguments.
In theology, that is eschatology (end times), catechism (beliefs), and scriptures (respected writings). That means a belief system about the Earth’s climate is becoming a religion, something to believe in by faith. The old saying is “Man is incurably religious.”