Compost food waste. Recycle clean items. Buy what’s reusable and try to reduce buying what’s designed to be disposed. Berkeleyans know that green and blue bins are for compost and recycling, respectively. But paying attention to the details can divert more from landfills and even impact our climate.Toss more of your pizza boxes, coffee grounds, yard trimmings, and compostable fiber foodware into your green bin – instead of your gray household trash bin. Discard into that gray bin the milk cartons, pet waste, diapers, grease, rocks, and many plastic-looking utensils labeled “compostable.”