You are spot on in the problems of "scalability". In my opinion I think the efforts for example of the Clinton Global Initiative are highly important, as they t

You are spot on in the problems of "scalability". In my opinion I think the efforts for example of the Clinton Global Initiative are highly important, as they target less the "starvation" problem, but trying to break traditional gender roles. By giving girls an education it should help them to define themselves beyond the traditional housewife role and limit the reproductive "ambitions". The promotion of contraceptive is of cause another tool in order to reduce a further growth of the population in certain regions. But it is a very sensitive subject, that is rarely discussed openly (i.e. who are we to tell other nations to change their cultural traditions etc).