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2. Brown, S. 2015. Sustainability and environment: How the ecumenical movement helped mobilize ecology protest in East Germany. https://www.oikoumene.org/news/sustainability-and-environment-how-the-ecumenical-movement-helped-mobilize-ecology-protest-in-east-germany. Accessed 26 Apr 2023.
3. Brundtland, G. 1987. Report of the World Commission on Environment and Development: Our Common Future. United Nations General Assembly Document A/42/427.
4. Conradie, E.M. 2023. ‘What, Exactly, Needs to be Sustained Amidst a Changing Climate?’ In M. Fuller, M. Harris, J. Leidenhag and A. Runehov (eds.), Global Sustainability: Science and Religion in Dialogue, 25–40. Cham: Springer.
5. Drees, W.B. 2015. Naked Ape or Techno Sapiens? The Relevance of Human Humanities. Inaugural address delivered at Tilburg University on 30 January 2015. Tilburg: Tilburg University.