Daly City's Green Vision - City of Daly City

Methodology
This greenhouse gas emissions inventory follows the standard methodology outlined in LGOP, which was adopted
in 2008 by ARB and serves as the national standard for quantifying and reporting greenhouse emissions from local
government operations. By participating in the Silicon Valley Climate Protection Partnership, Daly City has the
opportunity to be one of the first in the nation to follow LGOP when inventorying emissions from government
operations.
This chapter outlines the basic methodology utilized in the development of this inventory to provide clarity to how
the inventory results were reported. Specifically, this section reviews:
What greenhouse gases were measured in this inventory.
What general methods were used to estimate emissions.
How emissions estimates can be reported (the scopes framework, roll-up numbers).
How emissions estimates were reported in this inventory.
A more detailed account of LGOP and the methodology used in this inventory can be found in Appendices A and B.
2.1 Greenhouse Gases
According to LGOP, local governments should assess emissions of all six internationally recognized greenhouse
gases regulated under the Kyoto Protocol. These gases are outlined in Table 2.1, which includes the sources of these
gases and their global warming potential (GWP).7
7 Global warming potential (GWP) is a measure of the amount of warming a greenhouse gas may cause, measured against the amount of
warming caused by carbon dioxide.
2005 Daly City Government Operations Greenhouse Gas Emissions Inventory 9