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Greenhouse gas emission inventories for all Sonoma cities and the County were completed.
A summary report and many supplemental reports were produced for the project.

GHG Inventory Project

The Greenhouse Gas Inventory Project was completed in November 2003, with all contract deliverables fulfilled. Greenhouse gas emission inventories for all Sonoma cities and the County were completed. Presentations about project results and implications were made to all nine City Councils, the Board of Supervisors, and the Board of the Sonoma County Waste Management Agency. The project cost slightly less than expected, and took five months longer than expected.

The project inspired many additional activities that went beyond the original scope of the project. Highlights of these enhancements include:

  • A water and wastewater analysis that, according to one expert, will transform the way we look at water, energy, GHG, and costs.
  • New web-based tools, for example, the online employee commute survey, that may help other municipalities, schools, businesses, etc. to calculate the GHG emissions from their commutes
  • Identification of bold ideas that may help Sonoma County and others to dramatically reduce costs and GHG emissions
  • Wider distribution of the projects summary and supplements reports
  • Better access, exposure, and presentation for the project through the Skymetrics website
  • A Watergy Workshop, given on November 12, 2003, that drew electeds and staff from throughout the Bay Area to address reducing costs and GHG emissions through energy and water efficiency
  • Continued funding and momentum for climate protection through a new contract with the Bay Area Air Quality Management District.


Eight Sonoma cities agreed to work together to calculate their emissions. They selected the Sonoma County Waste Management Agency to administer a GHG Inventory Project to gather data, conduct analyses, and report back results of the emission calculations. The Waste Management Agency is using a team of consultants plus student interns from Sonoma State University to implement the project.

Overview of GHG Inventory Phases

*Project began at the end of December 2002 and is projected to end in mid June 2003.

Data Collection Overview

Data Collection Overview

Organizational Chart

Progress Reports


For more information, please contact:
Ann Hancock, Project Coordinator
Photo by Georgia Woods


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