Total emissions

[l-emele]

Description of the issue

In GHG inventories and GHG projections adhering to UNFCCC and European Guidelines, different concepts of total emissions are needed:

• Total emissions excluding LULUCF
• Total emissions including LULUCF
• Total emissions including international bunkers
• Total emissions excluding international bunkers
• Total emissions excluding international aviation
• Total emissions including international aviation

And combinations of these...

Ideas of solution

Treat these as CRF sectors

Workflow checklist

• [ ] I discussed the issue with someone else than me before working on a solution
• [ ] I already read the latest version of the workflow for this repository
• [ ] The goal of this ontology is clear to me

I am aware that

• [ ] every entry in the ontology should have a definition
• [ ] classes should arise from concepts rather than from words

[l-emele]

Some first proposals:

• The CRF sector (IPCC 2006) total emissions excluding LULUCF is a a sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. It encompasses the following IPCC 2006 sectors: energy; industrial processes and product use; agriculture; waste; and other.
• The CRF sector (IPCC 2006) total emissions including LULUCF is a a sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. It encompasses the following IPCC 2006 sectors: energy; industrial processes and product use; agriculture; land use, land-use change and forestry; waste; and other.

To describe international bunkers and international aviation, we need further sector individuals:

• The CRF sector (IPCC 2006) international bunkers is a transport sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. It encompasses international aviation and maritime navigation.
• The CRF sector (IPCC 2006) international aviation is a transport sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Emissions from flights that depart in one country and arrive in a different country.
• The CRF sector (IPCC 2006) maritime navigation is a transport sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Emissions from fuels used by vessels of all flags that are engaged in international water-borne navigation. The international navigation may take place at sea, on inland lakes and waterways and in coastal waters. Includes emissions from journeys that depart in one country and arrive in a different country. Exclude consumption by fishing vessels

[han-f]

Thanks @l-emele this reads really good, I wouln't know what to add, except slight changes (bold) here:

• The CRF sector (IPCC 2006) international aviation is a transport sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. It encompasses emissions from flights that depart in one country and arrive in a different country.
• The CRF sector (IPCC 2006) maritime navigation is a transport sector defined by the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Emissions from fuels used by vessels of all flags that are engaged in international water-borne navigation. The international navigation may take place at sea, on inland lakes and waterways and in coastal waters. It includes emissions from journeys that depart in one country and arrive in a different country. It excludes consumption by fishing vessels.

[han-f]

Should we also indicate the "category names" for aviation and navigation as in the MMR template, e.g.:

• international aviation = I.B Aviation
• international maritime = I.B. Navigation

How could we treat the Unique individual identifier in OEO for these special cases?

[l-emele]

In the CRF tables and the NIRs, the following codes are used:

• 1.D International aviation and international navigation (international bunkers) and multilateral operations
• 1.D.1 International aviation and international navigation (international bunkers)
• 1.D.1.a International aviation (aviation bunkers)
• 1.D.1.b International navigation (marine bunkers)
• 1.D.2 Multilateral operations

[l-emele]

I'll start implementing this after merging #941.

Regarding the MMR IDs for international aviation have three options (of course for navigation the same.):

• Add one sector individual with two unique individual identifiers CRF 1.D.1.a and MMR I.B Aviation.
• Add one sector individual with one unique individual identifier CRF 1.D.1.a and add I.B Aviation as alternative term.
• Add two individuals, one CRF sector (IPCC 2006): international aviation and one MMR sector I.B aviation and add the axiom same individual as between those two.

I prefer the second option as in the MMR table the international aviation sector with the unique individual identifier CRF 1.D.1.a is meant, but it is just labeled differently.

[l-emele]

Discussed today bilaterally with @han-f:

Add the following alternative terms that are used by EEA with editor note linking to EEA:

• Total emissions excluding LULUCF = Total emissions (UNFCCC)
• Total emissions including LULUCF = Total net emissions (UNFCCC)
• Total emissions excluding LULUCF and international bunkers =Total emissions with international transport (EEA)
• Total emissions including LULUCF and international bunkers = Total net emissions with international transport (EEA)
• Total emissions excluding LULUCF and international aviation =Total emissions with international aviation (EU 2020)
• Total emissions including LULUCF and international aviation =Total net emissions with international aviation (NDC)

For the definition of the last four simply the structure: Total emissions XYZ is a sector that encompasses A and B...

Add editor notes:

• Total emissions excluding LULUCF and international aviation: This definition corresponds to the 2020 emission target of the European Union.
• Total emissions including LULUCF and international aviation: This definition corresponds to the 2030 emission target as specified in the Nationally Determined Contribution (NDC) of the European Union . (Side note: We could think about adding nationally determined contribution as a own concept, but that would be a topic for a new issue.)

Add further sector M.International aviation in the EU ETSfrom MMR template. Here I have to proposals:

• The MMR sector 'M.International aviation in the EU ETS' is a transport sector that is defined by the MMR sector division. It encompasses emissions from flights that depart in one EU member state and arrive in a different EU member state.
• The MMR sector 'M.International aviation in the EU ETS' is a transport sector that is defined by the MMR sector division. It encompasses emissions from flights that depart in one member state of the European Economic Area and arrive in a different member state of the European Economic Area.

@han-f: Which is the right one? Does the EU-ETS for aviation also cover flights from/to Norway, Iceland and Liechtenstein?

[l-emele]

In issue #834 / PR #853 we defined EU emission sector: ETS aviation as: The EU emission sector ETS aviation is a transport sector defined by the EU emission sector division that covers greenhouse gas emissions regulated by the European Union Emissions Trading System and that are emitted by stationary installations. That definition is of course humbug and probably a copy & paste error. The right definition should be: The EU emission sector ETS aviation is a transport sector defined by the EU emission sector division that covers greenhouse gas emissions regulated by the European Union Emissions Trading System and that are emitted from aviation. As this is related to M.International aviation in the EU ETS we can and should correct this here in this issue.

[l-emele]

New proposal from internal discussion with @han-f and one of our ETS experts: The MMR sector 'M.International aviation in the EU ETS' is a transport sector that encompasses that part of the international aviation that is regulated by the European Union Emissions Trading System. This links to both the EU-ETS and international aviation which we both already have in the OEO.

Further result: What we implemented as MMR sector division is actually the sector definition of the governance regulation. So we relabel/redefine:

• The MMR GovReg sector division is a sector division defined in Annex XXV, Table 1a of Commission Implementing Regulation (EU) 2020/1208. It uses CRF sectors (IPCC 2006) and adds further sectors.

And add:

• The MMR sector division is a sector division defined in XII, Table 1 of Commission Implementing Regulation (EU) 749/2014. It uses CRF sectors (IPCC 2006) and adds further sectors.