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Relevant Protocols and Standards · Two global approaches to organizational (sometimes called “corporate” or “entity-level”) greenhouse gas accountings are available: The Greenhouse Gas Protocol (GHG Protocol) was developed by a consortium convened by the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD), and second revision is now available. ISO 14064-1:2006 Greenhouse gases -- Part 1: Specification with guidance at the organization level for quantification and reporting of greenhouse gas emissions and removals. It specifies principles and requirements at the organization level for quantification and reporting of greenhouse gas (GHG) emissions and removals. It includes requirements for the design, development, management, reporting and verification of an organization's GHG inventory. Estimating GHG or Carbon Emissions · GHG emissions or carbon dioxide equivalent emissions or simply carbon emissions refer to emissions of all GHGs stated in terms of tonnes of carbon dioxide equivalent (CO2 eq). The carbon dioxide equivalent (CO2 eq) allows the different greenhouse gases to be compared on a like-for-like basis relative to one unit of CO2. CO2e is calculated by multiplying the emissions of each of the greenhouse gases by its 100 year global warming potential (GWP).The equivalence is based on Global Warming Potential (GWP) of each GHG and CO2 is considered as common denominator with an equivalence of 1 and other GHGs are expressed in CO2e using their respective GWP. For example methane (CH4) has GWP is 28. Hence 1 kg CH4 emissions equal 28 kg CO2 equivalent. |