Paul Greenberg is the author of Four Fish: The Future of the Last Wild Food. He meets Evan for lunch at a sushi bar in Little Tokyo and walks us through the a la carte sushi menu. As a general rule he says if you are unsure about the sustainability of a particular fish it's best not to order it. When he is unsure, he uses Fish Phone, a text service from the Blue Ocean Institute.
You can text Fish Phone at 30644. Type FISH and then the name of the fish in question. Fish Phone will text you back with an assessment of how sustainable your fish choice is.
Music: "A Walk" by Tycho