Consider the “Witnesses of Climatology”, a fledgling “religion” invented to foster greater commitment to action on climate change. After a decade spent working on engineering solutions to climate change, its founder Olya Irzak came to the conclusion that the real problem lay not some much in finding technical solutions, but in winning social support for them. “What’s a multi-generational social construct that organises people around shared morals?” she asks. “The stickiest is religion.”

So three years ago, Irzak and some friends set about building one. They didn’t see any need to bring God into it – Irzak was brought up an atheist – but did start running regular “services”, including introductions, a sermon eulogising the awesomeness of nature and education on aspects of environmentalism. Periodically they include rituals, particularly at traditional holidays. At Reverse Christmas, the Witnesses plant a tree rather than cutting one down; on Glacier Memorial Day, they watch blocks of ice melt in the California sun.

As these examples suggest, Witnesses of Climatology has a parodic feel to it – light-heartedness helps novices get over any initial awkwardness – but Irzak’s underlying intent is quite serious.

“We hope people get real value from this and are encouraged to work on climate change,” she says, rather than despairing about the state of the world. The congregation numbers a few hundred, but Irzak, as a good engineer, is committed to testing out ways to grow that number. Among other things, she is considering a Sunday School to teach children ways of thinking about how complex systems work.

Recently, the Witnesses have been looking further afield, including to a ceremony conducted across the Middle East and central Asia just before the spring equinox: purification by throwing something unwanted into a fire – a written wish, or an actual object – and then jumping over it. Recast as an effort to rid the world of environmental ills, it proved a popular addition to the liturgy. This might have been expected, because it’s been practised for thousands of years as part of Nowruz, the Iranian New Year – whose origins lie in part with the Zoroastrians.

Transhumanism, Jediism, the Witnesses of Climatology and the myriad of other new religious movements may never amount to much. But perhaps the same could have been said for the small groups of believers who gathered around a sacred flame in ancient Iran, three millennia ago, and whose fledgling belief grew into one of the largest, most powerful and enduring religions the world has ever seen – and which is still inspiring people today.

Perhaps religions never do really die. Perhaps the religions that span the world today are less durable than we think. And perhaps the next great faith is just getting started.

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Sumit Paul-Choudhury is a freelance writer and former editor-in-chief of New Scientist. He tweets @sumit.

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