Welcome to EFDB!

• Nature of EFDB: EFDB is meant to be a recognised library, where users can find emission factors and other parameters with background documentation or technical references that can be used for estimating greenhouse gas emissions and removals. The responsibility of using this information appropriately will always remain with the users themselves.
• Request for data input: Users are encouraged to provide the EFDB with any relevant proposals on emission factors or other related parameters. If you wish to submit your data for the first time, please contact the Technical Support Unit to obtain your login name and password. Acceptance of such proposals will be subject to evaluation by the EFDB Editorial Board using well-defined criteria.
• Terminology: EFDB is a database on various parameters to be used in calculation of anthropogenic emissions by sources and removals by sinks of greenhouse gases. It covers not only the so-called "emission factors" but also the other relevant parameters. For convenience sake, however, the term "Emission Factor" or its abbreviation "EF" is sometimes used to represent parameters in this database generally.
• Software requirements: It is highly recommended to use Microsoft Internet Explorer version 5.0 or higher for best performance. Alternatively Netscape Navigator version 6.0 or higher can be used. It is also recommended to have Microsoft Office 97 or higher for generating Word and Excel outputs.
• EFDB at present contains only the IPCC default data (default data presented in the Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories and the IPCC Good Practice Guidance and Uncertainty Management in National Greenhouse Gas Inventories). It also contains the data from CORINAIR94, but please note that these data records may be renewed in due course in accordance with the latest version of CORINAIR data set (i.e., data in the Joint EMEP/CORINAIR Atmospheric Emission Inventory Guidebook, Third Edition. Copenhagen: European Environment Agency, 2001). It is highly recommended to consult the website at http://reports.eea.eu.int/EMEPCORINAIR4/en for details on CORINAIR data.

What's new

3 December 2009 - The electronic file of nomination form for the EFDB Editorial Board members (Attachment III to the letter No: 5077-09/IPCC/TFI) is available here. Due date for nomination is 31 January 2010.

30 November 2009 - The EFDB CDROM version 2.1 (November 2009) has been produced. It will be distributed at the UNFCCC COP15/CMP5 in Copenhagen, Denmark (7-18 December 2009).

12 November 2009 - Twenty-six new data for Energy Sector have been accepted by the Editorial Board and have been made available. [EF-ID: 121034-121059] These data were provided by Finnish Environment Institute (SYKE) in Finland.

10 November 2009 - One new data for Industrial Processes Sector has been accepted by the Editorial Board and has been made available. [EF-ID: 220905] This data was provided by Finnish Environment Institute (SYKE) in Finland.

10 November 2009 - Four new data for Energy Sector have been accepted by the Editorial Board and have been made available. [EF-ID: 110612, 110642, 110645, 110649] These data were provided by TNO-MEP in the Netherlands.

24 September 2009 - Two new data for Energy Sector have been accepted by the Editorial Board and have been made available. [EF-ID: 120926, 120927] These data were provided by Korea Energy Management Corporation (KEMCO) in Republic of Korea.

14 September 2009 - Ten new data for LULUCF Sector have been accepted by the Editorial Board and have been made available. [EF-ID: 520906-520915] These data were provided by Mr. Junpei Toriyama (Forestry and Forest Products Research Institute in Japan).

30 June 2009 - One new data for Energy Sector has been accepted by the Editorial Board and has been made available. [EF-ID: 120817] This data was provided by SenterNovem in the Netherlands.

26 June 2009 - The 7th meeting of EFDB Editorial Board and the 2nd & 3rd data meetings for EFDB were held in Santiago, Chile, on 22-24 November and on 24-26 November, respectively.

1 December 2008 - The EFDB CDROM version 2.0 (November 2008) has been produced. It is being distributed at the UNFCCC COP14/CMP4 in Poznan, Poland (1-12 December 2008).