Quite simply, this is one of the most important books anyone could ever read. Lester Brown addresses climate change as something to be taken seriously, but it is only the tip of the iceberg if we have any intention of saving civilization as we know it. Brown discusses social and economic theory of civilization without sounding didactic, then advocates for a common sense approach to change, but at “wartime speed,” referring to World War II, when within a month of entering the war; many American industries had managed to change to making whatever was needed for the war effort. Plan B 3.0 effectively builds that same sense of urgency without sounding hyperbolic. Bonus: it’s available for a free download in .PDF format from the Earth Policy Institute website. Double bonus: our esteemed editor-in-chief interviewed Lester Brown not too long ago.