Elon Musk, founder and chief engineer of SpaceX speaks at the 2020 Satellite Conference and Exhibition March 9, 2020 in Washington, DC.
Win McNamee | Getty Images
As of 11:09 p.m. ET Sunday, Bitcoin surged 10.2% to $38,903.23, according to data from Coindesk. Since the start of the year, bitcoin has surged more than 30%, though its current price is way off the all-time high of $64,829.14 hit in April.
Those gains came after Musk said Sunday that Tesla will resume allowing bitcoin transactions “when there’s confirmation of reasonable (~50%) clean energy usage by miners with positive future trend.”
Teslas halted car purchases with bitcoin in mid-May, citing concerns over the climate impact of cryptocurrency mining.
Crypto mining requires massive amounts of energy to fuel powerful computers — bitcoin mining consumes more energy than entire countries such as Finland and Belgium, according to the Cambridge Bitcoin Electricity Consumption Index.
The environmental impact of bitcoin mining has come under intense scrutiny.
As part of its crackdown on bitcoin, China’s Inner Mongolia region — a major bitcoin mining hub — in late-May proposed punishments for companies and individuals involved in digital currency mining. It came after Chinese Vice Premier Liu He said it is necessary to “crack down on Bitcoin mining and trading behavior” to prevent the “transmission of individual risks to the social field.”
Elsewhere, Iran’s government in announced in May a ban on the mining of bitcoin and other cryptocurrencies until Sept. 22, after officials said blackouts in the country’s capital of Tehran and several other large cities were in part due to the energy-intensive activity.
— CNBC’s Arjun Kharpal and Natasha Turak contributed to this report.