All the organic trash like lawn clippings, dead leaves, bushes pulled up and thrown away, dead branches & trees that went thru a wood chipper, organic waste from food companies like peanut shells & corn husks, fruit & vegetables thrown away, if all this stuff was collected ground into compost & mixed with cow manure it would be plenty for agricultural use, it just takes cooperation of everyone to dispose into containers so it can be moved to the proper collection for reuse and recycle,