1. Ashford and Curry. (2021, October 26). What Is Bitcoin And How Does It Work? Forbes Advisor. https://www.forbes.com/advisor/investing/what-is-bitcoin/
  2. Bitcoin energy consumption worldwide 2017-2021. (2021, October 21). Statista. https://www.statista.com/statistics/881472/worldwide-bitcoin-energy-consumption/
  3. Bitpanda. (o. J.). The difference between a cryptocurrency and fiat money. Abgerufen 14. November 2021, von https://www.bitpanda.com/academy/en/lessons/whats-the-difference-between-a-cryptocurrency-like-bitcoin-and-fiat-money
  4. Bitcoin is Key to an Abundant, Clean Energy Future. (n.d.). Square. Retrieved November 6, 2021, from https://squareup.com/us/en/press/bcei-white-paper
  5. Bitcoin Mining Council to report renewable energy usage. (2021, May 25). BBC News. https://www.bbc.com/news/technology-57240090
  6. Bjarnason, E. (n.d.). Iceland is a bitcoin miner’s haven, but not everyone is happy. Retrieved 5 November 2021, from https://www.aljazeera.com/features/2019/4/15/iceland-is-a-bitcoin-miners-haven-but-not-everyone-is-happy 
  7. Conway, L. (2021, November 4). Blockchain Explained. Investopedia. https://www.investopedia.com/terms/b/blockchain.asp
  8. Cholteeva, Y. (2021, June 25). Bitcoin and renewables: Is cryptocurrency mining problematic? POWER TECHNOLOGY. https://www.power-technology.com/features/bitcoin-and- renewables-is-cryptocurrency-mining-problematic/
  9. Dan. (2021, May 25). How green is my bitcoin? LSE Business Review.https://blogs.lse.ac.uk/businessreview/2021/05/25/how-green-is-my-bitcoin/
  10. De Vries, A. (2019). Renewable Energy Will Not Solve Bitcoin’s Sustainability Problem. Joule, 3(4), 893–898. https://doi.org/10.1016/j.joule.2019.02.007
  11. De Vries, A., & Stoll, C. (2021). Bitcoin’s growing e-waste problem. Resources, Conservation and Recycling, 175, 105901. https://doi.org/10.1016/j.resconrec.2021.105901
  12. Frankenfield, J. (2021, October 30). What Is Cryptocurrency? Investopedia. https://www.investopedia.com/terms/c/cryptocurrency.asp 
  13. Frost, R. (2021, November 3). Will Bitcoin survive without a shift to renewable energy? Euronews. https://www.euronews.com/green/2021/11/03/could-renewable-energy-helpbitcoin-Clean-up-its-carbon-footprint
  14. How long do ASICs last? (2021, April 29). Newsroom – Compass. https://compassmining.io/education/how-long-do-asics-last/
  15. Huang, J., O’Neill, C., & Tabuchi, H. (2021, September 3). Bitcoin Uses More Electricity Than Many Countries. How Is That Possible? The New York Times. https://www.nytimes.com/interactive/2021/09/03/climate/bitcoin-carbon-footprint-electricity.html
  16. The Economist. (2021, June 12). Crypto: Will the bitcoin dream succeed? | The Economist [Youtube video]. https://www.youtube.com/watch?v=5tt7y0gesyo
  17. John, A., Shen, S., & Wilson, T. (2021, September 24). China’s top regulators ban crypto trading and mining, sending bitcoin tumbling. Reuters. https://www.reuters.com/world/china/china-central-bank-vows-crackdown-cryptocurrency-trading-2021-09-24/
  18. Kaplan, E. (2021, January 6). Cryptocurrency goes green: Could “proof of stake” offer a solution to energy concerns? NBC News. https://www.nbcnews.com/tech/tech- news/cryptocurrency-goes-green-proof-stake-offer-solution-energy-concerns-rcna1030
  19. Lacey, R. (2021, July 22). Eco-friendly cryptocurrencies: Everything you need to know. The Times. https://www.thetimes.co.uk/money-mentor/article/eco-friendly-cryptocurrencies/
  20. Livni, E. (2021, October 10). Can Crypto Go Green? The New York Times. https://www.nytimes.com/2021/10/10/business/dealbook/crypto-climate.html
  21. Lu, M. (2021, April 20). Visualizing the Power Consumption of Bitcoin Mining. Visual Capitalist. https://www.visualcapitalist.com/visualizing-the-power-consumption-of-bitcoinmining/
  22. Matthews, L. (2021, April 2). The 15 Most Sustainable Cryptocurrencies for 2021. LeafScore. https://www.leafscore.com/blog/the-9-most-sustainable-cryptocurrencies-for-2021/
  23. Matthis, W. (2021, October 13). The U.S. Replaces China as World’s Biggest Bitcoin Miner. Bloomberg.Com. https://www.bloomberg.com/news/articles/2021-10-13/u-s-leads-the-world-in-bitcoin-mining-after-china-s-crackdown
  24. Rybarczyk, R., Armstrong, D., Fabiano, A. (2021) On Bitcoin’s Energy Consumption: A Quantitative Approach to a Subjective Question. Galaxy Digital. https://www.lopp.net/pdf/On_Bitcoin_Energy_Consumption.pdf 
  25. Saul, J. (2021, April). Bitcoin Power Consumption Jumped 66-Fold Since 2015, Citi Says—Bloomberg. Bloomberg. https://www.bloomberg.com/news/articles/2021-04-13/bitcoin-power-consumption-jumped-66-fold-since-2015-citi-says
  26. Schmidt, J. (2021, Juni 7). Bitcoin’s Energy Usage, Explained. Forbes Advisor. https://www.forbes.com/advisor/investing/bitcoins-energy-usage-explained/
  27. Sergeenkov, A. (2021, July 22). How to Set Up a Bitcoin Miner. https://www.coindesk.com/learn/how-to-set-up-a-bitcoin-miner-2/
  28. Sigurdardottir, R., Paulsson, L., & Starn, J. (2021, April 19). Bitcoin’s Green Haven Is Running Out of Surplus Electricity. Data Center Knowledge. https://www.bloomberg.com/news/articles/2021-04-17/bitcoin-s-green-haven-is-running-out-of-surplus-electricity