well...I tend to agree that the absolute CORE problem **IS** the human population. Solving any of the other problems are just bandaids and delaying if we don't stop and reverse population growth. If we produce food out of thin air and find cheap, non-polluting energy sources, we still cannot keep expanding......Did no one ever read about the rats in the cage experiments?

Do we REALLY want to find out what the absolute maximum possible population density is? It's like wondering how many weak sleeping pills you can take and still wake up.