http://www.naturallynews.org/living/royal-society-to-study-the-impact-of-population-growth/ While many species on Earth have been teetering on the edge of extinction in recent decades, human beings have witnessed a population boom on a scale that is quite difficult imagine. It was just in 1804 that the human population first numbered one billion, which seems quaint considering that 200 years later, there's about 6.7 billion of us on Earth. So far, no one is really sure what t... Mon, 12 Jul 2010 10:59:02 UTC en