I agree that population control needs to come back into the environmental discussion. As part of population control I think we also need to look at generational spacing. If we space out our generations we will effectively slow the rate of growth of population. This is something that I think is often left out of the discussion. I cringe when I see those pictures in the newspaper celebrating the gathering of 5 generations because it usually has nothing to do with the longevity of the individuals but more to do with their having had children at a very young age. People should be encouraged to wait until their 30's to have children in addition to being encouraged to have small families (1-2 children). There are other obvious benefits to waiting and having less both economic and social.