[1] https://www.umweltbundesamt.de/themen/landwirtschaft/umweltbelastungen-der-landwirtschaft/lachgas-methan (accessed: 14.06.2023)

[2] IPCC Guidelines for National Greenhouse Gas Inventories (2006)

[3] https://ourworldindata.org/grapher/co2-per-capita-marimekko?tab=table&time=latest&country=~OWID_WRL (accessed: 14.06.2023)