image of Flush book coverBryn Nelson (@SeattleBryn) has published a new book, “Flush: The Remarkable Science of an Unlikely Treasure” about how human feces could advance medicine, be a sustainable energy source, fuel agriculture and more — if we can get over our shame and disgust long enough to investigate and harness its potential. If we can, writes Nelson, our waste might just help save our planet — and us. Image courtesy of Grand Central Publishing