You can't be an environmentalist, you can't be an ocean steward without truly walking the walk and you can't walk the walk in the world of the future, the world ahead of us, the world of our children, not eating a plant-based diet.
If you wait until the right time to have a child you'll die childless, and I think film making is very much the same thing. You just have to take the plunge and just start shooting something even if it's bad.