It is an environmental issue, but it is much more. Any system of production that attempts to conquer nature will create conflicts with nature, degrade its environment, and risk its long run sustainability. Industrial agriculture epitomizes a system of farming in conflict with nature. Sustainable farming systems must function in harmony with nature. The fundamental purpose of agriculture is to convert solar energy into products for human food and fiber.
Nature provides biological means of converting solar energy into living plants and animals.
Nature provides means by which things come to life, protect themselves, grow to maturity, reproduce, and die to be recycled to support a future generation of life. Agriculture attempts to tip the ecological balance in favor of humans relative to other species. But, if we attempt to tip the balance too far, too fast, we destroy the integrity of the natural system of which we are a part. A sustainable agriculture must be in harmony with nature. But, a sustainable agriculture also must be in harmony with people.