According to the EPA, the annual production of manure produced by animal confinement facilities exceeds that
    produced by humans IFAP is spread on the ground untreated. Manure in such large quantities carries excess
    nutrients and farm chemicals that find their way into waterways, lakes, groundwater, soils and airways. Excess
    and inappropriate land application of untreated animal waste on cropland contributes to excessive nutrient
    loading and, ultimately, eutrophication of surface waters.

    Eutrophication is an excess of nutrients in a body of water, mostly nitrates and phosphates from erosion and
    runoff of surrounding lands, that causes a dense growth of plant life and the death of aquatic animal life due to
    lack of oxygen.

    "There is no such thing as a meat-eating environmentalist. The meat, dairy, and egg industries are poisoning
    and depleting our land, water, and air. Every time we eat animal products, we contribute to ecological
    devastation and the wasteful misuse of resources on a global scale."

    CAFOs have become an increasing source of concern because of their impact on the environment, human
    health, and quality of life of rural populations. A review of health literature reveals potential adverse health
    effects associated with CAFOs that include groundwater contamination, air contamination, respiratory disease,
    and the creation and spread of antibiotic-resistant bacteria.
    Centers for Disease Control.