1. 復興の現状と課題 (Reconstruction Agency, 2021); https://www.reconstruction.go.jp/topics/main-cat1/sub-cat1-1/2021.1_genjoutokadai.pdf
2. Press conference by the Prime Minister. Cabinet Public Relations Office https://japan.kantei.go.jp/99_suga/statement/202009/_00001.html (2020).
3. Policy speech by the Prime Minister to the 204th session of the diet. Cabinet Public Relations Office https://japan.kantei.go.jp/99_suga/statement/202101/_00013.html (2021).
4. Summary and Evaluation of COP 19 / CMP 9 (the 19th Conference of Parties to the UNFCCC and the 9th Session of the Conference of the Parties Serving as the Meeting of the Parties to the Kyoto Protocol). Ministry of Foreign Affairs of Japan https://www.mofa.go.jp/policy/page3e_000130.html (2013).
5. Submission of Japan’s Intended Nationally Determined Contribution (INDC) (UNFCCC, 2015); https://www4.unfccc.int/sites/submissions/INDC/Published%20Documents/Japan/1/20150717_Japan's%20INDC.pdf