This is the touchiest problem to talk about but population balance with us of resources is the root issue for us humans to solve. Earth Protect has a nonprofit partner, see blue banner bar below logo and click on population or scroll to World Population Balance to see what they have to say about how to approach this. Its a consumption problem in the US and other developed countries.
If we are to save the population problem where do we start? In the Schools? Do we need government to tell people how many children they can have like in China?
This group is the project of the Global Population Speak Out. It offers sustainability activists who make the "population connection" a place to share thoughts, ideas and strategic thinking.