You have GAS! Sewer Methane GHG Accounting

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This is a joint webcast with the Water Research Foundation.

The Intergovernmental Panel on Climate Change (IPCC) has consistently suggested that collection-system methane is an insignificant GHG emission in the developed world that can be ignored. Estimates (Willis, 2017) actually support IPCC's default assumption on national perspective by suggesting that sewer-methane's roughly 1 million annual metric tons of carbon-dioxide-equivalent emissions (MT-CO2e/yr) represent only 0.014% of the US’s ~7 billion MT-CO2e/yr, EIA, 2008). However, while true on a national scale, those same sewer-methane emissions likely represent half of the average wastewater utility's scope-1 GHG emissions; and is therefore a very significant GHG source for utility emissions inventories.

This webinar will provide an overview of a new Water Research Foundation-developed (WRF) methodology to estimate sewer methane emissions for utilities. The methodology, its development and verification will be described by the developers Keshab Sharma and John Willis. Asbjørn Haaning-Nielsen will summarize the University of Aalborg's (Denmark) related sewer-methane research and his assessment of the methodology and Wendy Barrott of the Great Lakes Water and Sewer Authority (Detroit, MI) will summarize her utility's use of the method, their objectives and results.

There will be 2.0 Professional Development Hours (PDHs) offered for this webcast. Please check with your state accreditation agency to determine if you qualify.