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.
Key Point #3. When planned as part of a system of green infrastructure, parks can help shape urban form and buffer incompatible uses. Key Point #4. Cities can use parks to reduce public costs for stormwater management, flood control, transportation, and other forms of built infrastructure.