TUCSON, Ariz–(ENEWSPF)–February 11, 2011. The number of people on Earth is expected to hit 7 billion later this year, a deeply troubling milestone in the human overpopulation crisis that’s contributing to widespread extinction of plants and animals, overconsumption of our natural resources, climate change, and other environmental problems. February is Global Population Speak Out month, one of the best opportunities for citizens to take action on this crucial environmental issue.
