Why NFT art is okay. Adding transactions makes no difference to energy use as mining coins happens with or without transactions, also Etherium is in process of upgrade to Eth2, completed by some time in 2022, and after that will have negligible energy use. medium.com/superrare/no-c…
I.e. you use Etherium blockchain, but miners mine Etherium coins with or without fine art transactions, so no increase in mining work. After Etherium "proof of stake" upgrade to Eth2 by 2022, mining has negligible energy use blog.ethereum.org/2014/01/15/sla… 
This is about the process of upgrade to the more sustainable Etherium 2 with only a tiny fraction of the energy use of Bitcoin. It uses "proof of stake" rather than "proof of work". I don't understand the details but they have it all worked out. ethereum.org/en/eth2/
@threadreaderapp unroll
Calculations like this are flawed IMHO github.com/kylemcdonald/c… because the number of transactions makes no difference to the day's CO2 emissions. They ARE indirectly supporting the coins. But it's not a bad one to support given that it will have almost zero power use by 2022.
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