Not Easy Being Green

I guess one of the reasons I have distrust of the environmental lobby is their elevation of the importance of the earth above we who inhabit it. Case in point, this new study that recommends that saving the world is as easy as not having kids. Crazy. I thought the point of "going green" was to preserve the world for the next generation. But in order to preserve the world we need to eliminate the next generation?

I'm confused.

HT: Tyana