Cool Manure Links
Because this is only one website, and I cannot write every single thing about manure, I have left you some links to look at. These links are links to websites that have something to do with manure.
Link on the war over bat guano. http://www.historytoday.com/john-peter-olinger/guano-age-peru
Link on how pigs compost manure on a farm http://www.permaculture.co.uk/articles/how-pigs-can-compost-manure-farm-scale-saving-you-fuel-and-money
Link on chemical fertilizer runoff http://www.scientificamerican.com/article/fertilizer-runoff-overwhelms-streams/
Link on the book Holy Shit and its author Gene Logsdon http://www.chelseagreen.com/bookstore/item/holy_shit/
Link on how pigs compost manure on a farm http://www.permaculture.co.uk/articles/how-pigs-can-compost-manure-farm-scale-saving-you-fuel-and-money
Link on chemical fertilizer runoff http://www.scientificamerican.com/article/fertilizer-runoff-overwhelms-streams/
Link on the book Holy Shit and its author Gene Logsdon http://www.chelseagreen.com/bookstore/item/holy_shit/