1. EU Commission: Stepping up Europe's 2030 climate ambition: Investing in a climate-neutral future for the benefit of our people. 17.09.2020
2. Carrington, D.: UN global climate poll: 'The people's voice is clear - they want action'. In: The Guardian, 27.01.2021
3. Hydrogen Council: Path to hydrogen competitivenes : A cost perspective. Online: https://hydrogencouncil.com/wp-content/uploads/2020/01/Path-to-Hydrogen-Competitiveness_Full-Study-1.pdf, aufgerufen am 19.10.2020
4. EU Commission: The European Green Deal. Online: https://eur-lex.europa.eu/resource.html?uri=cellar:b828d165-1c22-11ea-8c1f-01aa75ed71a1.0002.02/DOC_1&format=PDF, aufgerufen am 27.01.2021
5. BBC News: Climate change: China aims for 'carbon neutrality by 2060'. 22.09.2020