Wikidata:Property proposal/Carbon dioxide equivalent

Carbon dioxide equivalent edit

Carbon dioxide equivalentOriginally proposed at Wikidata:Property proposal/Natural science

Not done

Description	Equivalent amount of carbon dioxide to measure product's carbon footprint, which represents a product’s contribution to global warming through the emission of greenhouse gases during product's life-cycle
Represents	carbon dioxide equivalent (Q1933140)
Data type	Number (not available yet)
Domain	manufactured products
Allowed units	kg CO2e
Example	Iphone 7 -> 56 kg CO₂e
Source
Planned use	Add this information to manufactured products

Motivation

Promote sustainable products and manufacturing https://en.wikipedia.org/wiki/Sustainable_products. Qupro (talk) 02:29, 5 January 2017 (UTC)[reply]

Maybe It could be use by http://wikifootprints.org/

@Qupro: Please give en example using an existing Wikidata item and a value, like in other property proposals. Ping me if you need help. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 18:37, 5 January 2017 (UTC)[reply]
@pigsonthewing: Thanks, I have update it. Qupro (talk) 15:33, 15 January 2017 (UTC)[reply]

Discussion

Comment the description and allowed units do NOT match the planned use. Is this intended to be for greenhouse gases other than CO2 (per the description), or is it intended to describe the carbon footprint of commercial products (the example link and "planned use" statements)? Assuming it is for commercial products, the units should be grams (of CO2 equivalent) or grams per 100 grams of product or something along those lines ArthurPSmith (talk) 18:47, 5 January 2017 (UTC)[reply]

@ArthurPSmith, You are right, I have change the description, It's for commercial products. After more reading and find http://wikifootprints.org/ , not sure if value could be given per product, Kg or by a given custom quantity. Qupro (talk) 15:33, 15 January 2017 (UTC)[reply]

Comment @Qupro: Please be coherent: you mentioned the application domain as "greenhouse gas", so chemicals, and after you set in domain "companies, manufactured products". Please fix this if you want we support your proposal. Snipre (talk) 09:06, 14 January 2017 (UTC)[reply]

@Snipre , Thanks, I have changed as I have commented before. Qupro (talk) 15:33, 15 January 2017 (UTC)[reply]

Oppose We have already global warming potential (P2565) so I am currently opposed to this proposal. Snipre (talk) 09:08, 14 January 2017 (UTC)[reply]

I didnt know about global-warming potential property, so, now that the description has been clarified, Are these 2 properties equivalent?. If yes, I will start using global warming potential (P2565). Qupro (talk) 15:33, 15 January 2017 (UTC)[reply]
- @ArthurPSmith: I Knew but as the initial proposal was not clear and was mentioning greenhouse gases I prefered to oppose.
- @Qupro: I suppose you don't know the subject because your proposal can't be interesting for specialists and can even lead to wrong conclusions: there are several methods to calculate the carbon equivalent of the production of 1 kg of substance/one good or the use of one service. Methods can differ according to their boundaries (cradle-to-gate, cradle-to-grave,...) or by their methodology (focus on pollution, energy,...). So they is no unique value but different values according to the method used. Instead of a general property using qualifier to describe the method better create one property for each method. Snipre (talk) 22:59, 17 January 2017 (UTC)[reply]
  - @Snipre: So, what about using Qualifiers ? Here an example of this Help:About data#/media/File:Statement with reference and qualifier - Earth.png Maybe "determination method" (Property:P459) could be use for methodology and "of (scope)" (Property:P642) could be used for boundaries. Would this be enough to define value in order to be useful? Qupro (talk) 21:08, 18 January 2017 (UTC)[reply]
    - @Qupro: You can do a lot things but you have to show in your proposal the way to model the data you want to see imported. You want to use qualifiers, ok, but which qualifiers, which values to use ? this should be indicated in the proposa. Provide a full example with a reference and if possible provide good sources. My concern is about the limited definition of your property and the uncovered domain of a lot of other environmental indicators which are used in LCIA (life cycle impact assement). There are 2 levels in environmental indicators, the combined indicators like Eco-Indicator 99, CML 2002, Impact 2002+, ReCiPe or Ecological scarcity and the single indicators like ozone depletion, acidification, eutrophication, land use or climate change. My advice is try to read something about LCIA (perhaps this can help) and try to redefine the proposal. If you are not clear enough at the level of the proposal, your property will become a mix of different data with different data modeling and finally will be useless. Snipre (talk) 07:07, 22 January 2017 (UTC)[reply]

Support @Snipre: global warming potential (P2565) is for greenhouse gases, this property proposal is for commercial products, these are two very different things (which was what my earlier comment was based on). Now that Qupro has clarified this property is meant for commercial products, I support it. ArthurPSmith (talk) 14:02, 17 January 2017 (UTC)[reply]

Support per ArthurPSmith. ChristianKl (talk) 22:28, 20 February 2017 (UTC)[reply]
@Qupro, Snipre, ChristianKl: Given mixed support and lack of activity in over 3 months I have marked this as Not done. If you want to revive this, I suggest a new proposal with several more comprehensive examples as suggested by Snipre above. ArthurPSmith (talk) 19:04, 14 June 2017 (UTC)[reply]
For people interesed on this property, an equivalent one was created https://www.wikidata.org/wiki/Property_talk:P5991 Qupro (talk) 12:23, 18 November 2019 (UTC)[reply]