7 billion

There was an interesting Op-ED piece in the New York Times this past Sunday by the Mathematical Ecologist Joel Cohen.  In it Dr. Cohen muses on the implications of our population passing the 7 billion mark.  It is an interesting read.  The Washington Post also has several human population related stories this week, including this infographic, this story about how we measure human population growth, and this story about the economic practicalities of managing human demographics