I believe the environmental movement has many of the hallmarks of an apocalyptic Millenarian cult.
Urgent predictions of doom and fear-mongering
Utopian ideology
Us v them, good v evil mindset
Guilt and self-flagellation
A child messiah
Unquestioning dogma
Ironically the environmental movement is fundamentally anti-capitalist and yet an increasing number of major companies are dishonestly using 'green' issues to sell their products.
Disclaimer - I do believe climate change is a reality and that human activity is a significant factor.