I had a crazy thought about applying free-software principles to environmentalism. Is there a Richard Stallman type character known among those circles? What I

I had a crazy thought about applying free-software principles to environmentalism. Is there a Richard Stallman type character known among those circles? What I mean is, are there any 'strict-adherence' type rules that are too far even for the lay-environmentalist? Something like: "A true environmentalist may not birth or father their own children, only adopt." RMS is famously known for refusing to own a cell phone until there's one that runs entirely on free software, what is at the same level of adherence for environmentalists?