1. Environmental HealthAccording to Cornell entomologist David Pimentel, it's estimated that only 0.1 percent of applied pesticides reach the target pests. The bulk of pesticides (99 percent) are left to impact the environment. Waterways and farmland are contaminated by chemical run-off from farms. Arguably one of the largest environmental disasters has been the loss of quality soil. Many organic farmers grow bio-diverse crops rather than the industrial monoculture model, which depletes the soil.
2. Safe Drinking WaterThe more chemicals applied per acre, the greater the challenge in preserving water quality. The Dead Zone in the Gulf of Mexico, an area of low oxygen that can kill fish and marine life, is the most graphic example of the enormous harm caused when farm chemicals, flowing off of millions of acres, congregate in the mighty Mississippi. So, not only is chemically dependent agriculture damaging our drinking water, it's also harming our waterways and oceans.
3. Health RisksIt should be no surprise that the chemical pesticides that kill off pests are also causing harm to your health. But it doesn’t just stop with harming you; pesticide, herbicide, and chemical fertilizer usage pose health risks to farmers and farm workers. Pesticides ingested by pregnant women have been linked to birth defects and deformities. Studies have also shown that some herbicides and pesticides stimulate the growth of breast cancer cells and cause mammary cancer in rats.
Organic crops cannot be grown with synthetic persistent chemicals, sewage sludge, irradiation, animal cloning, or genetic engineering. The USDA organic seal guarantees that farmers abide by these standards. By eating organic, you will dramatically reduce the amount of pesticide residue you ingest on a daily basis, thus reducing your risk for diseases.