That is the cynical reason for not doing anything ever to help the world.
Why should I vote? I’m one person and that will never make a difference.
Why should I recycle? I’m just one person and that will never make a difference.
Why should I donate to charity? I’m just one person and that will never make a difference.
Anything that you could do individually to help the world will make zero noticeable impact so long as you are the only one doing it. But collectively, the more people doing it the more of an impact it will have.
And how do we get a larger community of people to start something like this? Oh, I don’t know, maybe send your idea out on a forum of like minded people (such as people expressing concern about the environment) and hope to inspire others that actually care to make a change in their own habits.