- Account: A User's unique, password-protected interface to authenticate a User's identity and credentials to this MediaWiki, to make edits on this MediaWiki (including creating pages, editing content on pages, and adding comments to discussion boards), and to receive various levels of authorization and other editing capabilities (an "Account").
- Administrative Pages: All indexing, resource, and guidance pages on this MediaWiki -- as indicated by page titles beginning or ending in either "(Resource)", "(Guideline)", "(Index)", or "Index" (collectively, the "Administrative Pages");
- Administrators: Users that have administrative editing privileges.
- Content: Data & Information and Results (collectively, the "Content");
- Creator: Alexander G. Frantzen ("Creator");
- Data & Information: All data and information made available on this MediaWiki, including calculations (collectively, the "Data & Information");
- Editors: Any individual(s), entity or entities, that use an account to make edits to any pages on this MediaWiki (collectively, "Editors");
- Open license: This term on WikiCarbon refers to the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) ("Open license");
- Results: Product Carbon Footprint results, final calculations, carbon inventories, and summaries, including for both brand-specific and general products, as well as other greenhouse gas (GHG) inventories (collectively, the "Results"); and
- User: Any individual(s), entity or entities, that read, use and/or edit Content hosted and compiled on this MediaWiki (collectively, the "Users").
This MediaWiki (hosted on www.wikicarbon.org) was created by Alexander G. Frantzen ("Creator") to house Content (defined below) in accordance with the Creative Commons open license Attribution-ShareAlike 4.0 International (CC BY-SA 4.0), in perpetuity.
Data & Information is unique to the assumptions and practices utilized by Editors. Product carbon footprints (PCFs) are prepared by Editors using Guidelines and Resources; neither Editors nor Creator guarantee that Editors utilize the same and/or consistent assumptions and practices to compile Data & Information in preparing Data & Information, nor that the Data & Information is verified and/or sourced. As such, product carbon inventories and PCF summaries, including for both general and brand-specific products, as well as other greenhouse gas (GHG) inventories (collectively, the "Results"), may not be reliable measures and are not meant as a platform for comparability to other companies and/or products. Even for similar products, differences in the data sources, completion of relevant data compilation, differing assumptions for activity data, use profile(s), end-of-life (EOL) profile(s), and data quality may produce incomparable results.
This MediaWiki (www.wikicarbon.org) is focused on the single measure: GHG emissions; presented and quantified using a carbon dioxide equivalent (CO2e) basis of measure. As per guidelines, GHG emissions should be converted to CO2e with the use of greenhouse gas conversion factors provided. The GHG conversion factors -- Global Temperature change Potentials (GTPs) and Global Warming Potentials (GWPs) -- listed in Guidelines on this MediaWiki originate from the Fifth Assessment Report (AR5) of the United Nations Intergovernmental Panel on Climate Change (IPCC). Neither Creator nor Editors makes any claim(s) as to the reliability or accuracy of conversion factors to assess the consequence of emissions (including global warming, climate disruptions, or climate change) from different greenhouse gases, including carbon dioxide (CO2). Further, as per the AR5, "All metrics have limitations and uncertainties in assessing consequences of different emissions."
Other measures and environmental impacts:
Creator and Editors, through the hosting and/or editing of Content, do not make assessments as to the social or economic aspects or impacts, or any other environmental aspects and related impacts potentially arising from the life cycle of a product. This Mediawiki (www.wikicarbon.org) does not assess or compile information on other potential social, economic, and environmental impacts or issues arising from the provision of products; nor other issues associated with the life cycle of products, including non-GHG emissions, acidification, eutrophication, toxicity, biodiversity or labor standards. The relative importance of these impacts can vary significantly from product to product, and it is important to be aware that decisions taken on the basis of a "single issue" or "single measure" assessment could be detrimental to other environmental impacts potentially arising from the provision and use of the same product. The life cycle GHG emissions of products, calculated using either the Pro forma PCF (Guideline) or the Product Standard PCF (Guideline), do not provide an indicator of the overall environmental or socioeconomic impact of these products, such as those that may result from other types of life cycle and/or impact assessments.
Carbon Accounting Standard The term Product Standard throughout this MediaWiki should refer to the WRI/WBCSD GHG Protocol Product Life Cycle Accounting and Reporting Standard; as such, the term should always be capitalized and italicized; and should link to the page titled: Product Life Cycle Accounting and Reporting Standard. While this MediaWiki (www.wikicarbon.org) directs all Editors who prepare PCF Assessmenets to rely on either the (1) Pro forma PCF (Guideline), for either general and/or brand-specific products, or (2) Product Life Cycle Accounting and Reporting Standard (the "Product Standard"), for exclusively brand-specific products: neither Creator nor Editors guarantee that Content prepared by Editors and made available on this MediaWiki (www.wikicarbon.org), including PCF Assessments for general and/or brand-specific products, is prepared fully or partially in accordance with Product Compilation. It may be that some PCFs are prepared by Editors without relying on Pro forma PCF and/or Product Standard PCF guidelines; and/or without properly sourcing and citing data. Neither Creator nor Editors, nor any affiliate, partner organization or individual making contributes and/or posting content to this this MediaWiki, assumes responsibility for any consequences or damages resulting directly or indirectly from the use of Content in decision making, the preparation of reports, program specifications, or the use of reports based on Data & Information and/or Results compiled on this MediaWiki (www.wikicarbon.org).
Users should refer to the GHG Protocol Product Life Cycle Accounting Standard for a glossary and additional insight into the GHG inventory process. Creator , WikiCarbon, and Editors are not affiliated with GHG Protocol, WRI, or WBCSD. Content does not reflect the views or opinions of, nor is it endorsed by, GHG Protocol, WRI, WBCSD, or any other entity.
- Myhre, G., D. Shindell, F.-M. Bréon, W. Collins, J. Fuglestvedt, J. Huang, D. Kock, J.-F. Lamarque, D. Lee, B. Mendoza, T. Nakjima, A. Robock, G. Stephens, T. Takemura and H. Zhang, 2013: Anthropogenic and Natural Radiative Forcing. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifith Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.
- IPCC, 2014: Climate Change 2014: Mitigation of Climate Change. Contribution of Working Group III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Edenhofer, O., R. Pichs-Madruga, Y. Sokona, E. Farahani, S. Kadner, K. Seyboth, A. Adler, I. Baum, S. Brunner, P. Eickemeier, B. Kreimann, J. Savolainen, S. Schlömer, C. von Stechow, T. Zwickel and J.C. Minx (eds.)] Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.
- The Greenhouse Gas Protocol ("GHG Protocol"), by the World Resource Institute (WRI) and World Business Council for Sustainable Business (WBCSD).