3.2 GHG emission factors were collected and aggregated because the emission factor is an important basis in terms of greenhouse gas emissions per unit of raw fuel materials usage, and therefore the quantization process in a very important factor. In general, the emission factor should be used on-site or localization of the data would be more appropriate, however, for this part of the domestic research is still inadequate, and therefore emission factors used mostly data IPCC, GHG Protocol, USEPA published by organizations such as the main, The appropriateness of the emission factors for source identification and use is a priority at this stage. 3.3 Calculation of greenhouse gas emissions in the collection contains a summary of activity rate and emission coefficient of all greenhouse gas emissions data, to quantify GHG final calculation. Six different greenhouse gases, since CO2 and five other greenhouse gases caused by different characteristics, in order to correct this gap, need to use the global-warming potential (Global Warming Potential, GWP), which in terms of actual CO2 equiv; that is multiplied by a specific gas emissions of global warming gases, and calculated potential. After a summary of the most complete calculations. ISO14064 is defined in the calculation process, special attention should be units of activity rate and emission coefficient is able to match; In addition, because greenhouse gases other than CO2 in five different GWP values ??of ISO14064 certification, ISO14064 professional should pay special attention in terms of CO2 eq certification, if the reference error may cause differences in quantitative results of thousands or even hundreds of times. A purpose and significance, ISO14064 implementation aim to reduce greenhouse gas (GHG) emissions and emissions trading, the promotion of quantification of greenhouse gases, monitoring, reporting and verification of consistency, transparency and credibility; ensure that the organization identify and manage GHG-related obligations, assets and risks; promote greenhouse gas cap or credit transactions; comparable and design support consistent GHG program or programs, research and implementation. Two, ISO14064 1 in the implementation, management, reduction of greenhouse gas risks and identify opportunities to compile a comprehensive inventory of greenhouse gas emissions could allow enterprises to understand their condition greenhouse gas emissions, and possible liability risk. But also to estimate the greenhouse gas emissions through, accounting, companies will assist the most cost-effective reduction opportunities excavated; 2, to enhance energy and material efficiency and reduce operating costs. With the development of more new goods and services, customers or suppliers to reduce greenhouse gas emissions. 3, establish a good image of social responsibility: With the focus on climate change more and more ISO14064, an increasing number of non-governmental organizations, investors, or other stakeholders require companies to disclose more information about greenhouse gas emissions . Public disclosure of corporate greenhouse gas emissions information can strengthen the good relations between stakeholders and to establish business between customers and the general public "social responsibility, environmental management" reputation. 4. Add greenhouse gas emissions trading market: for example, have introduced market mechanisms approach in some areas, to be offset greenhouse gas emissions. These programs need to deal with than the actual emissions set emission targets or caps, to decide whether to buy or sell emission rights, and is usually only required to estimate the part of the direct emissions. Meanwhile, in order to assist in the identification of independent work, the emissions trading system are required to participate in the enterprise, its escalation GHG information, the establishment of a certification for clues. 5, to avoid exceeding the limit future greenhouse gas risks: Implementing ISO14064 will be enterprises to enhance energy efficiency, reduce costs and meet environmental requirements of customers, the only way to show the image of social responsibility, can foresee the near future, more and more enterprises will seek in greenhouse gas emissions and reporting third-party certified, in order to enhance the global "green" procurement competition as soon as possible to get the "green" pass in global trade. ISO14064 Definition | Enterprise Road (certified) | Huizhou Huizhou ISO14064 provided by enterprises of the Road Enterprise Management Services Limited. Huizhou City, the rate of the Road Enterprise Management Services Ltd. 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