Catch Of the Freezer.

GO local. Eat organic. Buy fresh. Those food mantras continue to make waves among environmentally conscious consumers. But -- as is often the case in these climate-conscious times -- if the motivation is to truly make our diets more earth-friendly, then perhaps we need a new mantra: Buy frozen. Several years ago, the three of us -- two ecological economists and one food system researcher -- teamed up in an effort to understand how to develop sustainable food systems to feed a planet of nine billion by 2050. As the focus of our study, we chose salmon, an important source of protein around the world and a food that is available nearly anywhere at any time, regardless of season or local supply. [ABSTRACT FROM PUBLISHER]