Why is organic a better choice? Exposure to synthetic pesticides has been shown to cause cancer and a range of other harmful health effects including damage to the nervous system, lungs, and reproductive organs. The persistent chemicals used in conventional agriculture not only reach consumers and those involved in food production but also contaminate soil, air, and waterways, poisoning entire communities and depleting the long-term usability of natural resources. Organic agriculture, which eliminates these harmful chemicals, can actually mitigate a number of environmental threats by conserving water, emitting lower levels of greenhouse gases, and sequestering carbon in the soil. These benefits not only slow climate change but also make the food supply more secure by preventing soil erosion and water loss and maintaining biodiversity.