We can all do something to help the Earth and the survival of all species on it. I think that a good way to do this is to choose to have a small number of children, for example having one child in all in a family. With over 6 billion people already on the planet, we can help make room for nature and other species with our choice.
A study published in 2009 by Oregon State University researchers concludes that the best way for people to reduce their carbon footprint is to have fewer children:
http://blog.oregonlive.com/environment_impact/2009/07/carbon%20legacy.pdf .
Found this group by accident My dh and I decided, back in the 70s, to raise one child only because of world hunger, overpopulation, impact on the environment, etc. We made that good decision then and we have not for a moment thought that we could have or should have done otherwise. Now it seems even more important. Good for you for providing a forum in which to air these ideas!
So happy to see this thread reactivated.
I know so many people assume some families have an only child because of infertility issues, and I always find that offensive. There are so many other reasons why some people choose to have one child (and if infertility issues are the problem, that is fine too but folks should never assume).