manure
Manure is source of many harmful gases
Submitted by Jeanna Yu on Sat, 02/07/2009 - 02:30
According the United States Department of Agriculture (USDA), the amount of manure generated in 2005 was estimated to be over 335 million tons of dry matter per year. Much of this manure comes from concentrated animal feeding operations (CAFOs). The largest 2% of all CAFOs produce over 40% of all animals, according to the USDA. READ MORE »
