The reputation of cannabis as an earth-saving, carbon-devouring green giant comes with a caveat: it needs to be grown outdoors. According to the Augusta Free Press, indoor cannabis grows are actually detrimental to the environment, while outdoor grows are far better.
Generally, no electricity is required for outdoor grows, whereas indoor grows require running electric lights between 12 and 18 hours per day and running fans 24 hours per day. They also require more plastic and other materials. Outdoor grows are cheaper, more productive (in most cases), and better for the planet.