Seven Billion

As we head into the end of the month you'll hear more about this upcoming milestone as the UN has declared October 31st as a symbolic '7 Billion Day'. On, or around, this day the earth will contain 7 billion people. The Wall Street Journal had an article on how this date was calculated.

This is relevant to our last two weeks discussion since most of the threats to species are caused by people, and specifically, too many people and an ever increasing demand for resources.

National Geographic had an article earlier this year with their usual array of interesting photographs.