Palo Alto generates yard waste, food and compostable waste, and biosolids. The City is concerned with managing these waste streams in order to minimize GHG emissions and return organics to the biosphere.

1. And Greenhouse Gases CO 2 CH 4 N 2 O Organic Waste Management

3. Compost Pile 1 ton Carbon => 3.6 Tons CO 2 Carbon-rich organics Soil-enriching compost

4. Incineration CO 2 H 2 O CO C N 2 O

5. Anaerobic Decomposition Carbon/Water to CO 2 Carbon/Water to CH 4 Sequestered Carbon

8. 1,100 tons = + 0.15%

9. Landfilled Compostables tons tons tons Compostables are 29% of Palo Alto’s “black bin” waste. 22,737 Tons of

10. Modern Landfill Design

20. Organics Management Passive Active Palo Alto Operation Multi-city Partnership Contracted Location & Technology

21. Organics Management Control Economies of Scale City-Owned Multi-City Contracted

22. Multi-tech Organics Approach Composting Digestion Soils Restoration Sequestration Green Energy Green Bins Wastewater Black Bins Pyrolysis