http://www.pcgamer.com/cities-skylines-pollution-battling-dlc-green-cities-is-out-now/ >The coughing citizens of your Cities: Skylines metropolis can breath again—the game's eco-friendly expansion is out now. Green Cities, which is £9.99/$12.99 on Steam and Humble Store, adds more that 350 assets to the game, from Geothermal Power Plants to Yoga Gardens and Bee Havens. >The DLC also adds new specialisations for your buildings, all of which help keep pollution at bay. You can design self-sufficient apartment blocks, for example, or plonk down shops that only sell organic and locally-produced goods.