REFERENCES
[1] Carbon Brief (April 2020): “Analysis: Coronavirus set to cause largest ever annual fall in CO2 emissions.” Retrieved from https://www.carbonbrief.org/analysis-coronavirus-set-to-cause-largest-ever-annual-fall-in-co2-emissions
[2] M. Garside, Statista (February 2020): “Major countries in worldwide cement production 2015-2019”. Retrieved from https://www.statista.com/statistics/267364/world-cement-production-by-country/
[3] M. Garside, Statista (January 2020): “Cement production worldwide from 1995 to 2019)”. Retrieved from https://www.statista.com/statistics/1087115/global-cement-production-volume/
[4] IEA (November 2016): “World Energy Outlook 2016”. Retrieved from https://www.iea.org/reports/world-energy-outlook-2016
[8] LafargeHolcim (2019): „CO2 emission reduction”. Retrieved from https://www.lafargeholcim.com/climate-energy
[9] D. Stanway, Reuters (September 2019): “Concrete steps? For China cement giants, monster carbon footprint smothers climate goals”. Retrieved from https://www.reuters.com/article/us-climate-change-china-cement/concrete-steps-for-china-cement-giants-monster-carbon-footprint-smothers-climate-goals-idUSKCN1VX0QQ
[10] German Federal Statistical Office (June 2020): „Wirtschaft. Außenhandel.“ Retrieved from https://www.destatis.de/DE/Themen/Wirtschaft/Aussenhandel/_inhalt.html
[11] World Trade Organization (April 2020): “Trade set to plunge as Covid-19 pandemic upends global economy”. Retrieved from https://www.wto.org/english/news_e/pres20_e/pr855_e.htm
[12] Environmental Protection Agency (November 2014): “The BAT (Best Available Techniques) Reference Document (BREF), entitled ‘Waste Treatments Industries’”. Retrieved from  (http://www.epa.ie/licences/lic_eDMS/090151b28050de8b.pdf
[13] Trading Economics: “Coal”. Retrieved from https://tradingeconomics.com/commodity/coal
[14] World Bank Group (June 2020): “Global Economic Prospects”. Retrieved from https://www.worldbank.org/en/publication/global-economic-prospects
[15] Joe Harder, Interview in Global Cement Magazine (June 2020), p. 8-10
[16] Dr. Philip Gisdakis, UniCredit (April 2020): “Update: Coronavirus und seine Auswirkungen auf die Finanzmärkte“