24 COM/ENV/EPOC/IEA/SLT(2021)1 2.2.2. The CRF Reporter The CRF Reporter is a web-based software developed by the UNFCCC Secretariat to facilitate the reporting of national GHG inventories by Annex I Parties. Within each Party, the number of staff with access to the CRF Reporter is usually limited. The CRF Reporter provides an interface through which Parties can report their national GHG inventories in line with the UNFCCC reporting guidelines on annual GHG inventories. The CRF Reporter’s functions, therefore, only relate to the second phase (reporting) of the GHG inventory process, as it generates tables in line with the structure and format of the CRF tables annexed to decision 24/CP.19 (UNFCCC, 2013[3]). The Reporter can also perform some basic calculation functions, including the calculation of implied emission factors, GHG emissions in CO2 equivalent and aggregate emissions into sectoral and national totals. The CRF Reporter generates the Party’s set of CRF tables and an XML-file, which contains all information submitted in a fully machine-readable format. Each set of CRF tables includes a .xlsx file for each year of the time series reported (e.g., 1990-2018 for the inventories reported in 2020). Annex I Parties submit their NIRs and CRF tables through the submission module embedded within the CRF Reporter. The XML file is also provided to the UNFCCC Secretariat, where it is fed into a data warehouse system. The data warehouse system itself is not publicly accessible. Information in this data warehouse system is used for several purposes. For example, data is fed into tools facilitating the review of Annex I Parties’ national GHG inventories and into the UNFCCC’s GHG Data Interface (Figure 3), which presents GHG emissions reported by Annex I and non-Annex I Parties.10
Figure 3. UNFCCC GHG Data Interface
Source: UNFCCC Greenhouse gas inventory data, available at https://di.unfccc.int/time_series
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Data from non-Annex I Parties are presented in the following modules of the data interface: (i) Detailed data by Party; (ii) Comparison by category/gas; (iii) GHG profiles; (iv) Flexible queries; (v) User defined indicators. The Flexible Queries module of the data interface presents GHG emissions data, activity data, implied emission factor, method and emission factor information.
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