1. IPCC (2022). Mitigation of Climate Change Climate Change 2022 Working Group III Contribution to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, IPCC.
2. (2022, November 15). European Union: Energy System Restructuring towards a Long-Term Low-Emission Pathway Where Are We?. Available online: https://unfccc.int/sites/default/files/resource/365_COMMIT%20Fact%20Sheet%20EU%20-%20a%20long-term%20low-emission%20pathway.pdf.
3. Olhoff, A., and Christensen, J. (2021). Emissions Gap Report 2021. The Heat Is On. A World of Climate Promises Not yet Delivered, United Nations Environment Programme.
4. Kowalski, A. (2021). Wieprzowina—Nowa Perspektywa, Związek Polskie Mięso.
5. Fritsche, U.R., and Gress, H.W. (2022, November 15). Renewable Gas-Deployment, Markets and Sustainable Trade Summary Report of the IEA Bioenergy Intertask Project Renewable Gas: Deployment, Markets and Sustainable Trade Renewable Gas-Deployment, Markets and Sustainable Trade Summary Report of the IEA Bioenergy Intertask Project “Renewable Gas: Deployment, Markets and Sustainable Trade.” IEA Bioenergy. Available online: https://www.ieabioenergy.com/wp-content/uploads/2022/03/Fritsche-et-al-2022-IEA-Bioenergy-Renewable-Gas-Intertask-Summary-Report.pdf.