David Letterman is a national treasure. And, not for the first time, I ask you to marvel at the ability of Tom Friedman to generate a memorable aphorism for literally any point he’s trying to make. He’s like a savant or something:

[vodpod id=Video.999116&w=425&h=350&fv=]

Grist relies on the support of generous readers like you. Donate today to keep our climate news free.

(thanks LL!)

Grist thanks its sponsors. Become one.