Human waste : an overview / Rose George, as told to Katharine Mieszkowski -- Sewage poses many health risks / American Rivers -- Biosolids are safe / US Environmental Protection Agency -- Biosolids are unsafe / Josh Harkinson -- Humanure can make sewage more manageable / Catherine Price -- Sewage should be regulated and used to irrigate crops around the world / Fred Pearce -- Biofuel can turn sewage wastewater into a power resource / Greg Breining -- Using human waste for energy is problematic / Una -- All diapers have an environmental impact / Michael McDonough -- Diapers are unnecessary / AP Online -- Human waste still divides castes in India / Andrew Buncombe -- Human waste disposal in the backcountry presents challenges / Leave No Trace Center for Outdoor Ethics.
