1. United Nations Environment Programme, International Energy Agency, Global Status Report: towards a zero-emission, efficient and resilient buildings and construction sector., 2018. https://wedocs.unep.org/bitstream/handle/20.500.11822/27140/Global_Status_2018.pdf?sequence=1&isAllowed=y (accessed December 17, 2018).
2. J. Moldalieva , Moving the global mining industry towards biodiversity awareness, UN Environ. (n.d.). http://www.unenvironment.org/news-and-stories/story/moving-global-mining-industry-towards-biodiversity-awareness (accessed December 17, 2018).
3. United Nations, Environment Assembly of the United Nations Environment Programme, Towards a pollution-free planet, 2017. https://papersmart.unon.org/resolution/uploads/k1708347e.pdf (accessed December 17, 2018).
4. IPCC, Summary for Policymakers. In: Global warming of 1.5°C. An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty, World Meteorological Organization, Geneva, Switzerland, 2018. http://www.ipcc.ch/report/sr15/ (accessed December 17, 2018).
5. K.E. Boulding , The Economics of the Coming Spaceship Earth, in: Environ. Qual. Grow. Econ., H. Jarrett (ed.), Johns Hopkins University Press, Baltimore, MD, 1966: pp. 3–14. http://arachnid.biosci.utexas.edu/courses/THOC/Readings/Boulding_SpaceshipEarth.pdf (accessed November 14, 2018).