Sustainability Portfolio

We help clients balance the needs of people with those of the world around us.


Tim Hughes

San Diego International Air Quality Management Plan

C&S prepared an air quality management plan (AQMP) for San Diego International and two years later completed an update. We developed a baseline emission inventory for greenhouse gases and criteria pollutants, identified emissions reduction opportunities and funding, incorporated the AQMP into the airport sustainability policy, and helped achieve Airports Council International–North America (ACI-NA) environmental goals. For the update, we identified and inventoried emissions sources, documented emissions savings from strategies in the earlier plan, identified additional reduction measures, and assisted with finding funding. A strategic greenhouse gas (GHG) reduction plan was developed with recommendations for each of the airport’s thirteen emission sources. For each initiative, the plan identifies roles and responsibilities and the applicable Global Reporting Initiative G4 indicators. Anticipated emissions reductions, costs, and available funding were generated for high-priority emission sources. The plan also includes an analysis of the ACI-NA Airport Carbon Accreditation (ACA) Program. C&S prepared a business-as-usual emissions forecast and proposed emission reduction targets to help support the project. Over both projects, we secured two grants ($5.2 million) for gate power and pre-conditioned air units through the Voluntary Airport Low Emissions (VALE) Program.

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