"Im sure most of you have seen the news about Bitcoins energy consumption. For instance, in Iceland, more energy is used to mine Bitcoin than to power peoples homes and per day the global Bitcoin network now consumes more energy than Ireland. Hence, we chose to build on the Stellar network as it is the most environmentally friendly blockchain available. For comparison, a transaction on the Stellar network only uses 0.03 Wh whereas VISA uses 1.69 Wh per transaction. Clearly, the Stellar blockchain is the perfect technology partner for our platform."
Read morehttps://datafloq.com/read/amp/blockchain-can-save-climate-poseidon/5235?__twitter_impression=true
Some studies show that the mining of one Bitcoin consumes as much electricity equivalent to the electrical energy used by over 30 households.
A project underway named 4New seeks to produce green energy by turning waste to energy. With the energy produced they will create a mining farm where people can min the top 20 minable coins at a reduced cost and with energy produced from 4New. If you are interested to know more you can check 4New.io