Organic Waste Composting and Climate Change

A very important measure in the fight against globaldirectly fight methane as a greenhouse gas.
warming that is often overlooked is organicsPossibly more important is the fact that creation of
composting. Roughly a quarter of the U.S. wastequality compost for agricultural use can mean a
stream is made up of food waste and yard debris.significant reduction in the use of petrochemical
This material should all be composted and convertedfertilizers for crops. The use of petrochemicals for
into soil (think of composting as soil manufacturing).fertilizer is a significant contributor to greenhouse gas
Unfortunately, throughout the country theproduction. The energy used to manufacture
composting infrastructure is not very well developed.synthetic fertilizer represents 28% of the total
In the fight against global warming this may be oneenergy used in U.S. agriculture. Replacing fertilizer with
of the most important investments local, state, andcomposted soil can increase crop yields by 10-20%,
federal authorities can make.reduce production costs by a similar amount, and
Landfills throughout North America emit 196 millionincrease carbon management properties significantly.
metric tons of methane gas annually - about 24% ofFinally, on the economic development front, landfills
total man-made methane. Methane is a by-product ofand incinerators create one job per 10,000 tons of
organic waste decomposition in a controlled,material managed. Composting creates 4 jobs for the
anaerobic environment and a major greenhouse gas.same amount of material. As a way to ameliorate
Methane is a greenhouse gas that is roughly 21 timesgreenhouse gas emissions, landfills cost $16,000 per
more potent than carbon dioxide. Proper compostingfifty tons of methane managed, while composting
techniques can significantly reduce these emissions.systems manage the same amount of material for
Granted, landfills are now being retrofitted withabout $3,000.
methane collection systems that use the collectedAs we move forward, then, with a new national
gas to create power, but these systems are usuallyagenda to become energy independent, solve the
only 15-20% efficient, meaning that 80% or more ofglobal warming crisis and fix the world's economy,
landfill gases still escape into the atmosphere.composting will play a large part for everyone. As
Commercial composting systems used in Europe andthey say, "Compost Happens!
Asia today are proven carbon storage systems that