351. Comparison Between the IPCC Reporting Framework and Country Practice
- Author:
- Jiarui Chen and Martin Dietrich Brauch
- Publication Date:
- 07-2021
- Content Type:
- Special Report
- Institution:
- Columbia Center on Sustainable Investment
- Abstract:
- The 2006 Intergovernmental Panel on Climate Change (IPCC) Guidelines (IPCC 2008) for National Greenhouse Gas Inventories (IPCC Guidelines) provide a recommend- ed (but not mandatory) methodology for preparing Na- tional Inventory Reports (NIR), which all Annex I Parties2 to the United Nations Framework Convention on Climate Change (UNFCCC) must submit every year (Romijn et al. 2019). In practice, however, many countries apply modi- fied methodologies in their NIRs to reflect country-specif- ic situations better. While helpful in addressing country specificities, those modified methodologies may result in emission data that is less standardized and therefore harder to compare and consolidate. Also, the IPCC recom- mends that countries adopt higher tier methods and use more granular data. Since different emissions categorized by the IPCC3 can be calculated by multiple methods, and the granularity and quality of country emissions databas- es vary, different countries adopt different granularity lev- els and tier methods (IPCC 2008). The 160 Non-Annex I Parties to the UNFCCC (most of them developing countries) are not required to submit NIRs every year, but must submit Biennial Update Re- ports (BURs), including a national inventory report and information on mitigation actions, needs, and support re- ceived (Kainou 2016). Following the same IPCC Guidelines as NIRs, BURs are different from NIRs mainly in terms of reporting scope. The IPCC Guidelines require countries to report greenhouse gas (GHG) emissions in NIRs from 1980 to the latest reporting period, while for BURs they merely encourage countries to submit summary informa- tion tables of inventories for previous submission years.4 Besides the required BURs, more Non-Annex I Parties have been submitting NIRs and Technical Annexes on REDD+ in recent years (Romijn et al. 2019). In 2020, 23 Non-Annex I Parties submitted NIRs (UNFCCC 2020). We recommend that the IPCC adopt, based on a man- date from the Conference of the Parties to the UNFCCC, a consolidated framework to indicate best practice for each emissions category. A consolidated framework would help unify the granularity levels and standards across all coun- tries’ NIRs. It could also be extended to countries that have not adopted the IPCC Guidelines or published NIRs. Since an increasing number of Non-Annex I Parties are submit- ting NIRs to the UNFCCC, it is crucial to have a widely appli- cable framework that developing countries can also use. A consolidated framework would also make it easier for countries to communicate their emissions reductions goals in their Nationally Determined Contributions (NDCs) under the Paris Agreement on Climate Change. With the Paris Agreement, countries established an enhanced transparency framework (ETF): starting in 2024, countries will report transparently on actions taken and progress in climate change mitigation, adaptation measures, and support provided or received. It also provides for interna- tional procedures for the review of the submitted NIRs. A standardized reporting framework for NIRs would comply with the requirement of transparency framework under Paris Agreement (Winkler et al. 2017). To exemplify how a consolidated framework would work, after a background note on scopes and approaches in greenhouse gas reporting (section 1), we present the re- sults of our empirical research on the NIRs of Australia, Germany, Japan, and the United States, focusing on the differences in the choice of methodology (section 2) and emission factors (section 3). Then we conduct a case study on the German iron and steel industry, exploring the dif- ferences in emission reporting under different methods (section 4). Finally, we study the case of China, which has submitted BURs but not yet published annual NIRs, to understand how the IPCC Guidelines could be applied to more countries (section 5). We outline our findings and recommendations in section 6.
- Topic:
- Climate Change, Development, Environment, and International Cooperation
- Political Geography:
- Global Focus