Polar Permaculture is a grassroots company specializing in Permaculture-based food production for the arctic climate. They are based in Longyearbyen, Norway, the "northern most" city in the world. Longyearbyen has one of the highest CO2 outputs per capita in the world, and Polar Permaculture is actively working to make the place more sustainable. They have an indoor hydroponic garden, a mushroom garden, are composting with worms and are looking to make biogas and keep organic waste out of the sea. Polar Permaculture has been featured in several documentaries.