"Working with Doge devs to improve system transaction efficiency. Potentially promising," Musk said in a Thursday evening tweet.
The automaker is concerned about the “rapidly increasing use of fossil fuels” used for Bitcoin mining and transactions.
“Cryptocurrency is a good idea on many levels and we believe it has a prominent future, but this cannot come at great cost to the environment,” Musk said in Wednesday's statement.
Earlier Thursday, Musk said in a different tweet, "To be clear, I strongly believe in crypto, but it can’t drive a massive increase in fossil fuel use, especially coal."
The price of Bitcoin fell as much as 15% following Tesla's decision to stop accepting Bitcoin.
Musk has tweeted several times about Dogecoin, the meme crypto that has exploded in value in 2021, over the past few years.
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