Your compost pile should have an equal amount of browns to greens. You should also alternate layers of organic materials of different-sized particles. The brown materials provide carbon for your compost, the green materials provide nitrogen, and the water provides moisture to help break down the organic matter.
Green Stormwater Infrastructure. Green stormwater infrastructure includes a range of soil-water-plant systems that intercept stormwater, infiltrate a portion of it into the ground, evaporate a portion of it into the air, and in some cases release a portion of it slowly back into the sewer system. Vision. Tools. Programs. Projects.
Encourage Green Infrastructure. In many cities, rainfall has become a source of pollution. Every year, an estimated 10 trillion gallons of untreated stormwater washes off paved surfaces, through sewer systems, and into waterways. More than 750 cities have sewage systems that overflow into nearby waterways during larger rainstorms.