The United Nations says the world's population will reach seven billion sometime today, although the US Census Bureau says it'll happen sometime in March. Regardless of the date, there are some reasons for optimism as well as predictions of doom and gloom. We hear some of both -- from the US, China, India and sub-Saharan Africa.
Can Planet Earth Handle Seven Billion People?
- Andrew Revkin - ProPublica - @Revkin
- Joel Cohen - Rockefeller and Columbia Universities
- Deborah Seligsohn - World Resources Institute
- Patrick French - author