1. 1)環境省:http://www.env.go.jp/earth/COP26結果概要.pdf, (2021).
2. 2)朝日新聞:https://www.asahi.com/international/reuters/CRWKBN2HQ2BE.html, (2021).
3. 3)神田慶司:https://www.dir.co.jp/report/column/20230412_011025.html, (大和総研(2023)).
4. 4)NHK:https://www3.nhk.or.jp/news/html/20230421/k10014045311000.html, (2023).
5. 5)須賀康雄:成形加工, 31 (10), 382 (2019).