In an interesting and compelling paper (which you can download here) and a podcast interview (which you can listen to here), Ph.D. economics candidates Steve and Alison Sexton ask if people who lean green also place a value on being “seen” as green.

Our friends over at Freakonomics delve deep into the topic here on their blog, and in typical fashion they bring science to an idea that the folks over at the South Park TV show have known for years – that sometimes, it isn’t enough to just be green, you need everyone else to know it as well.

*Please note that if you view the videos over at the South Park TV show, there are adult themes and language.