Humans are a boom species, which means we may become a bust species if we aren't careful. One insurance policy to prevent that from happening is what I call Neolithic Park.
See what Neolithic Park is all about.
(This is part two of Boom Species and Eco Flip Flops)
See this discussion in text at http://www.whiteworld.com/technoland/stories-nonfic/2008-stories/neolithic-park.htm