"For now, the enviropig has some promising advantages to offer, and they all center on phosphorus. Phosphorus is an important element, it’s the ‘P’ in the famous NPK fertilizer approach to increasing crop yields. But that agricultural benefit can also be a curse. When pigs on modern farms defecate and urinate, they release a lot of phosphorus in the environment. With our centralized industrial agricultural system, this means that there is occasionally huge amounts of phosphorus dumped into a small area. When this element is washed into rivers and other bodies of water it can lead to steep increases in algae. Algae blooms disrupt natural oxygen levels and kill fish. In short, pig waste can be an environmental hazard. Enviropigs release up to 70% less phosphorus in their urine and feces. That means a smaller impact and a better chance of keeping balance in the ecosystems surrounding pig facilities." - Kurt Starnes