While I've noticed that there is a strong tendency among the eco-aware to use religious terminology when presenting their movement and its goals, I have yet to see anything more obvious than what I read on the following site.
Of the ten recommendations for an "eco-friendly" style of life, the writer offers:
3. Observe an eco-sabbath. For one day or afternoon or even hour a week, don't buy anything, don't use any machines, don't switch on anything electric, don't cook, don't answer your phone, and, in general, don't use any resources. In other words, for this regular period, give yourself and the planet a break. Keep your regular eco-sabbath for a month. You'll find that the enforced downtime represents an improvement to your life.
4. Tithe a fixed percentage of your income. Currently, many of our societal health and welfare services, at home and abroad, are tied to consumer spending which, in turn, depends upon planetary resource use. But the idea of buying stuff to help people is crazy, especially when you consider that our consumption is harming the habitat that we depend upon for our health, happiness and security. If you want to help, don't go shopping. Just help. Commit to tithing part of your income to the non-profits of your choice.
What's remarkable is that this is simply an uncredited climatological re-cycling [eco-friendly!] of a Methodist Church stewardship program. Every age needs a God [just ask Newsweek magazine] and a religion, it appears.