ℹ️ Skipped - page is already crawled
| Filter | Status | Condition | Details |
|---|---|---|---|
| HTTP status | PASS | download_http_code = 200 | HTTP 200 |
| Age cutoff | PASS | download_stamp > now() - 6 MONTH | 0.7 months ago |
| History drop | PASS | isNull(history_drop_reason) | No drop reason |
| Spam/ban | PASS | fh_dont_index != 1 AND ml_spam_score = 0 | ml_spam_score=0 |
| Canonical | PASS | meta_canonical IS NULL OR = '' OR = src_unparsed | Not set |
| Property | Value |
|---|---|
| URL | https://www.bbc.com/news/business-57096305 |
| Last Crawled | 2026-03-18 00:00:24 (21 days ago) |
| First Indexed | 2021-05-13 02:52:22 (4 years ago) |
| HTTP Status Code | 200 |
| Meta Title | Tesla will no longer accept Bitcoin over climate concerns, says Musk |
| Meta Description | The initial decision made by Tesla in March to accept Bitcoin caused an outcry from environmentalists. |
| Meta Canonical | null |
| Boilerpipe Text | 13 May 2021
Getty Images
Elon Musk said cryptocurrency could "not come at great cost to the environment"
Tesla has suspended vehicle purchases using Bitcoin due to climate change concerns, its CEO Elon Musk said in a tweet.
Bitcoin fell by more than 10% after the tweet, while Tesla shares also dipped.
Tesla's announcement in March that it would accept the cryptocurrency was met with an outcry from some environmentalists and investors.
The electric carmaker had in February revealed it had bought $1.5bn (£1bn) of the world's biggest digital currency.
Elon Musk's SpaceX to launch dogecoin moon mission
Bitcoin could derail China's climate change targets
How Bitcoin's vast energy use could burst its bubble
But on Thursday, it backtracked on its previous comments.
"We are concerned about rapidly increasing use of fossil fuels for Bitcoin mining and transactions, especially coal, which has the worst emissions of any fuel," Mr Musk wrote.
"Cryptocurrency is a good idea... but this cannot come at great cost to the environment."
He also said the electric carmaker would not sell any of its Bitcoin, and intends to use it for transactions as soon as mining shifts to using more sustainable energy.
Allow X content?
This article contains content provided by X. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read
and
before accepting. To view this content choose
‘accept and continue’
.
The BBC is not responsible for the content of external sites. X content may contain adverts.
Market analysts see the move as an attempt by Tesla to assuage the concerns of investors who are focused on climate change and sustainability.
"Environmental, Social and Corporate Governance (ESG) issues are now a major motivation for many investors. Tesla, being a clean energy-focused company, might want to work better in the environmental area of ESG," Julia Lee from Burman Invest told the BBC.
"But a cynic might suggest that this is just another move by Elon Musk to influence the cryptocurrency market, as he has done on so many other occasions," she added.
Elon Musk is hardly ill-informed when it comes to both technology and the environment. When I interviewed him in 2016 he spoke passionately about Tesla's mission to make transport sustainable in the battle against the "existential threat" of climate change.
So it is somewhat surprising that he has only just woken up to the fact that Bitcoin is not exactly a green project. Cambridge University's Centre for Alternative Finance runs a Bitcoin Electricity Consumption Index. Right now, it shows that the process of mining the cryptocurrency - which involves using vast amounts of computer processing power - uses more electricity each year than Malaysia or Sweden and is closing in on the annual consumption of Egypt.
Bitcoin enthusiasts insist that mining mainly involves renewable energy - in truth, the miners focus on whatever is cheapest and in China, where many of them are based, that is often electricity generated by coal.
When he announced his grand cryptocurrency plans back in February - and made Tesla's chief financial officer "Master of Coin" - Elon Musk sparked a surge in the value of Bitcoin and the adoration of its fanatical devotees. Now with the price falling the chatrooms are full of the angry and disappointed - many of them sporting the glowing eyes Bitcoin avatar - accusing their former hero of betrayal.
A move which was hailed as signalling that Bitcoin was going mainstream has ended up showing just how volatile - and downright flaky - the whole cryptocurrency scene can be.
Last month, Tesla announced profits for the first three months of the year were $438m, up from $16m last year, boosted by sales of Bitcoin and environmental credits.
Tesla profits boosted by Bitcoin and green credits
Mr Musk has been one of the world's most high profile proponents of cryptocurrencies, often tweeting about Bitcoin and the once-obscure digital currency Dogecoin.
His tweets in recent months helped to turn Dogecoin, which was started as a social media joke, into the world's fourth-biggest cryptocurrency.
What are the climate concerns around Bitcoin?
Bitcoin is created by miners using high-powered computers to compete against each other to solve complex mathematical puzzles.
It is an energy-intensive process that often relies on electricity generated with fossil fuels, particularly coal.
The dominance of Chinese Bitcoin miners and lack of motivation to switch from cheap fossil fuels to more expensive renewable energy sources could mean there are few quick solutions to the emissions concerns over Bitcoin.
The cryptocurrency's carbon footprint is as large as one of China's 10 largest cities, the study found.
That is because those Bitcoin miners tend to use electricity produced with fossil fuels, primarily coal, for most of the year, only shifting to renewable energy, mostly hydropower, during the rainy summer months.
Bitcoin explained: How do cryptocurrencies work?
Supporters of Bitcoin point out that the mainstream financial system, with its millions of workers and computers in air-conditioned offices, also uses large amounts of electricity, which is usually produced with fossil fuels.
Reporting by the BBC's Peter Hoskins |
| Markdown | [Skip to content](https://www.bbc.com/news/business-57096305#main-content)
[Register](https://session.bbc.com/session?action=register&userOrigin=BBCS_BBC&ptrt=https%3A%2F%2Fwww.bbc.com%2Fnews%2Fbusiness-57096305)
[Sign In](https://session.bbc.com/session?userOrigin=BBCS_BBC&ptrt=https%3A%2F%2Fwww.bbc.com%2Fnews%2Fbusiness-57096305)
- [Home](https://www.bbc.com/)
- [News](https://www.bbc.com/news)
- [Sport](https://www.bbc.com/sport)
- [Business](https://www.bbc.com/business)
- [Technology](https://www.bbc.com/technology)
- [Health](https://www.bbc.com/health)
- [Culture](https://www.bbc.com/culture)
- [Arts](https://www.bbc.com/arts)
- [Travel](https://www.bbc.com/travel)
- [Earth](https://www.bbc.com/future-planet)
- [Audio](https://www.bbc.com/audio)
- [Video](https://www.bbc.com/video)
- [Live](https://www.bbc.com/live)
- [Home](https://www.bbc.com/home)
- [News](https://www.bbc.com/news)
- [US & Canada](https://www.bbc.com/news/us-canada)
- [UK](https://www.bbc.com/news/uk)
- [UK Politics](https://www.bbc.com/news/politics)
- [England](https://www.bbc.com/news/england)
- [N. Ireland](https://www.bbc.com/news/northern_ireland)
- [N. Ireland Politics](https://www.bbc.com/news/northern_ireland/northern_ireland_politics)
- [Scotland](https://www.bbc.com/news/scotland)
- [Scotland Politics](https://www.bbc.com/news/scotland/scotland_politics)
- [Wales](https://www.bbc.com/news/wales)
- [Wales Politics](https://www.bbc.com/news/wales/wales_politics)
- [Africa](https://www.bbc.com/news/world/africa)
- [Asia](https://www.bbc.com/news/world/asia)
- [China](https://www.bbc.com/news/world/asia/china)
- [India](https://www.bbc.com/news/world/asia/india)
- [Australia](https://www.bbc.com/news/world/australia)
- [Europe](https://www.bbc.com/news/world/europe)
- [Latin America](https://www.bbc.com/news/world/latin_america)
- [Middle East](https://www.bbc.com/news/world/middle_east)
- [In Pictures](https://www.bbc.com/news/in_pictures)
- [BBC InDepth](https://www.bbc.com/news/bbcindepth)
- [BBC Verify](https://www.bbc.com/news/bbcverify)
- [Sport](https://www.bbc.com/sport)
- [Business](https://www.bbc.com/business)
- [World of Business](https://www.bbc.com/business/world-of-business)
- [Technology of Business](https://www.bbc.com/business/technology-of-business)
- [NYSE Opening Bell](https://www.bbc.com/business/opening-bell)
- [Technology](https://www.bbc.com/technology)
- [Artificial Intelligence](https://www.bbc.com/technology/artificial-intelligence)
- [AI v the Mind](https://www.bbc.com/technology/ai-v-the-mind)
- [Health](https://www.bbc.com/health)
- [Culture](https://www.bbc.com/culture)
- [Film & TV](https://www.bbc.com/culture/film-tv)
- [Music](https://www.bbc.com/culture/music)
- [Art & Design](https://www.bbc.com/culture/art)
- [Style](https://www.bbc.com/culture/style)
- [Books](https://www.bbc.com/culture/books)
- [Entertainment News](https://www.bbc.com/culture/entertainment-news)
- [Arts](https://www.bbc.com/arts)
- [Arts in Motion](https://www.bbc.com/arts/arts-in-motion)
- [Travel](https://www.bbc.com/travel)
- [Destinations](https://www.bbc.com/travel/destinations)
- [Africa](https://www.bbc.com/travel/destinations/africa)
- [Antarctica](https://www.bbc.com/travel/destinations/antarctica)
- [Asia](https://www.bbc.com/travel/destinations/asia)
- [Australia and Pacific](https://www.bbc.com/travel/destinations/australia-and-pacific)
- [Caribbean & Bermuda](https://www.bbc.com/travel/destinations/caribbean)
- [Central America](https://www.bbc.com/travel/destinations/central-america)
- [Europe](https://www.bbc.com/travel/destinations/europe)
- [Middle East](https://www.bbc.com/travel/destinations/middle-east)
- [North America](https://www.bbc.com/travel/destinations/north-america)
- [South America](https://www.bbc.com/travel/destinations/south-america)
- [World’s Table](https://www.bbc.com/travel/worlds-table)
- [Culture & Experiences](https://www.bbc.com/travel/cultural-experiences)
- [Adventures](https://www.bbc.com/travel/adventures)
- [The SpeciaList](https://www.bbc.com/travel/specialist)
- [Earth](https://www.bbc.com/future-planet)
- [Science](https://www.bbc.com/innovation/science)
- [Natural Wonders](https://www.bbc.com/future-planet/natural-wonders)
- [Climate Solutions](https://www.bbc.com/future-planet/solutions)
- [Sustainable Business](https://www.bbc.com/future-planet/sustainable-business)
- [Green Living](https://www.bbc.com/future-planet/green-living)
- [Audio](https://www.bbc.com/audio)
- [Podcast Categories](https://www.bbc.com/audio/categories)
- [Radio](https://www.bbc.com/audio/stations)
- [Audio FAQs](https://www.bbc.com/undefined)
- [Video](https://www.bbc.com/video)
- [BBC Maestro](https://www.bbc.com/video/bbc-maestro)
- [Discover the World](https://www.bbc.com/video/discover-the-world)
- [Live](https://www.bbc.com/live)
- [Live News](https://www.bbc.com/live/news)
- [Live Sport](https://www.bbc.com/live/sport)
[Home](https://www.bbc.com/)
News
[Sport](https://www.bbc.com/sport)
Business
Technology
[Health](https://www.bbc.com/health)
Culture
Arts
Travel
Earth
Audio
Video
Live
[Weather](https://www.bbc.com/weather)
[Newsletters](https://www.bbc.com/newsletters)
# Tesla will no longer accept Bitcoin over climate concerns, says Musk
13 May 2021
Share
Save
Share
Save
Getty Images
Elon Musk said cryptocurrency could "not come at great cost to the environment"
**Tesla has suspended vehicle purchases using Bitcoin due to climate change concerns, its CEO Elon Musk said in a tweet.**
Bitcoin fell by more than 10% after the tweet, while Tesla shares also dipped.
Tesla's announcement in March that it would accept the cryptocurrency was met with an outcry from some environmentalists and investors.
The electric carmaker had in February revealed it had bought \$1.5bn (£1bn) of the world's biggest digital currency.
- [Elon Musk's SpaceX to launch dogecoin moon mission](https://www.bbc.co.uk/news/business-57052811)
- [Bitcoin could derail China's climate change targets](https://www.bbc.co.uk/news/business-56671488)
- [How Bitcoin's vast energy use could burst its bubble](https://www.bbc.co.uk/news/science-environment-56215787)
But on Thursday, it backtracked on its previous comments.
"We are concerned about rapidly increasing use of fossil fuels for Bitcoin mining and transactions, especially coal, which has the worst emissions of any fuel," Mr Musk wrote.
"Cryptocurrency is a good idea... but this cannot come at great cost to the environment."
He also said the electric carmaker would not sell any of its Bitcoin, and intends to use it for transactions as soon as mining shifts to using more sustainable energy.
#### Allow X content?
This article contains content provided by X. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read
[X’s cookie policy](https://help.twitter.com/en/rules-and-policies/twitter-cookies)
and
[privacy policy](https://twitter.com/en/privacy)
before accepting. To view this content choose **‘accept and continue’**.
Accept and continue
The BBC is not responsible for the content of external sites. X content may contain adverts.

Market analysts see the move as an attempt by Tesla to assuage the concerns of investors who are focused on climate change and sustainability.
"Environmental, Social and Corporate Governance (ESG) issues are now a major motivation for many investors. Tesla, being a clean energy-focused company, might want to work better in the environmental area of ESG," Julia Lee from Burman Invest told the BBC.
"But a cynic might suggest that this is just another move by Elon Musk to influence the cryptocurrency market, as he has done on so many other occasions," she added.



Elon Musk is hardly ill-informed when it comes to both technology and the environment. When I interviewed him in 2016 he spoke passionately about Tesla's mission to make transport sustainable in the battle against the "existential threat" of climate change.
So it is somewhat surprising that he has only just woken up to the fact that Bitcoin is not exactly a green project. Cambridge University's Centre for Alternative Finance runs a Bitcoin Electricity Consumption Index. Right now, it shows that the process of mining the cryptocurrency - which involves using vast amounts of computer processing power - uses more electricity each year than Malaysia or Sweden and is closing in on the annual consumption of Egypt.
Bitcoin enthusiasts insist that mining mainly involves renewable energy - in truth, the miners focus on whatever is cheapest and in China, where many of them are based, that is often electricity generated by coal.
When he announced his grand cryptocurrency plans back in February - and made Tesla's chief financial officer "Master of Coin" - Elon Musk sparked a surge in the value of Bitcoin and the adoration of its fanatical devotees. Now with the price falling the chatrooms are full of the angry and disappointed - many of them sporting the glowing eyes Bitcoin avatar - accusing their former hero of betrayal.
A move which was hailed as signalling that Bitcoin was going mainstream has ended up showing just how volatile - and downright flaky - the whole cryptocurrency scene can be.

Last month, Tesla announced profits for the first three months of the year were \$438m, up from \$16m last year, boosted by sales of Bitcoin and environmental credits.
- [Tesla profits boosted by Bitcoin and green credits](https://www.bbc.co.uk/news/business-56897457)
Mr Musk has been one of the world's most high profile proponents of cryptocurrencies, often tweeting about Bitcoin and the once-obscure digital currency Dogecoin.
His tweets in recent months helped to turn Dogecoin, which was started as a social media joke, into the world's fourth-biggest cryptocurrency.
## What are the climate concerns around Bitcoin?
Bitcoin is created by miners using high-powered computers to compete against each other to solve complex mathematical puzzles.
It is an energy-intensive process that often relies on electricity generated with fossil fuels, particularly coal.
The dominance of Chinese Bitcoin miners and lack of motivation to switch from cheap fossil fuels to more expensive renewable energy sources could mean there are few quick solutions to the emissions concerns over Bitcoin.
China accounts for more than 75% of Bitcoin mining around the world, [according to recent research](https://www.bbc.co.uk/news/business-56671488).
The cryptocurrency's carbon footprint is as large as one of China's 10 largest cities, the study found.
That is because those Bitcoin miners tend to use electricity produced with fossil fuels, primarily coal, for most of the year, only shifting to renewable energy, mostly hydropower, during the rainy summer months.
Bitcoin explained: How do cryptocurrencies work?
Supporters of Bitcoin point out that the mainstream financial system, with its millions of workers and computers in air-conditioned offices, also uses large amounts of electricity, which is usually produced with fossil fuels.
*Reporting by the BBC's Peter Hoskins*
[Elon Musk's SpaceX to launch dogecoin moon mission](https://www.bbc.com/news/business-57052811)
[Bitcoin could derail China's climate change targets](https://www.bbc.com/news/business-56671488)
[Elon Musk reveals he has Asperger's](https://www.bbc.com/news/world-us-canada-57045770)
[Tesla profits boosted by Bitcoin and green credits](https://www.bbc.com/news/business-56897457)
[Elon Musk](https://www.bbc.com/news/topics/c302m85q53mt)
[Bitcoin](https://www.bbc.com/news/topics/c734j90em14t)
[Tesla](https://www.bbc.com/news/topics/c8nq32jwjnmt)
[Climate change](https://www.bbc.com/news/topics/cmj34zmwm1zt)
[Cryptocurrency](https://www.bbc.com/news/topics/cyd7z4rvdm3t)
***
Related
[Teens sue Musk's xAI over Grok's pornographic images of them](https://www.bbc.com/news/articles/cgk2lzmm22eo)
[Musk tells jury 'people read too much' into his posts](https://www.bbc.com/news/articles/c7433dz4ykwo)
[Musk cuts Starlink access for Russian forces - giving Ukraine an edge at the front](https://www.bbc.com/news/articles/c0q3ndj7052o)
***
More from the BBC
[24 Feb 2026  MPs demand temporary ban on crypto donations to UK parties It comes amid concerns the anonymity of crypto could be used to get round rules on foreign donations. 24 Feb 2026](https://www.bbc.com/news/articles/c9wny27y2ylo)
[17 Feb 2026  The unseen force turning water to salt From The Gambia to the US, sea salt is increasingly seeping into the freshwaters people need for drinking and producing food. 17 Feb 2026](https://www.bbc.com/future/article/20260216-the-unseen-force-turning-water-to-salt)
[12 Feb 2026  How China became fixated on cloud seeding China hopes to increasingly control when and where it rains. Ally Hirschlag examines why its ambitious cloud seeding plan is so controversial – and whether it actually works. 12 Feb 2026](https://www.bbc.com/future/article/20260203-why-china-is-pushing-controversial-cloud-seeding-tech)
[7 Feb 2026  S Korean crypto firm accidentally pays out \$40bn in bitcoin The company quickly realised its mistake and managed to recover virtually all the missing tokens from customers. 7 Feb 2026](https://www.bbc.com/news/articles/cz6y62nzjxxo)
[6 Feb 2026  Bitcoin falls to lowest level since Trump took office The price of the digital currency has dropped significantly despite President Donald Trump’s public support. 6 Feb 2026](https://www.bbc.com/news/articles/cy09x24q0pro)
***
- [Home](https://www.bbc.com/)
- [News](https://www.bbc.com/news)
- [Sport](https://www.bbc.com/sport)
- [Business](https://www.bbc.com/business)
- [Technology](https://www.bbc.com/technology)
- [Health](https://www.bbc.com/health)
- [Culture](https://www.bbc.com/culture)
- [Arts](https://www.bbc.com/arts)
- [Travel](https://www.bbc.com/travel)
- [Earth](https://www.bbc.com/future-planet)
- [Audio](https://www.bbc.com/audio)
- [Video](https://www.bbc.com/video)
- [Live](https://www.bbc.com/live)
- [Weather](https://www.bbc.com/weather)
- [BBC Shop](https://shop.bbc.com/)
- [BritBox](https://www.britbox.com/?utm_source=bbc.com&utm_medium=referral&utm_campaign=footer)
BBC in other languages
### The BBC is in multiple languages
#### Read the BBC In your own language
[Oduu Afaan Oromootiin](https://www.bbc.com/afaanoromoo)
[Amharic ዜና በአማርኛ](https://www.bbc.com/amharic)
[Arabic عربي](https://www.bbc.com/arabic)
[Azeri AZƏRBAYCAN](https://www.bbc.com/azeri)
[Bangla বাংলা](https://www.bbc.com/bengali)
[Burmese မြန်မာ](https://www.bbc.com/burmese)
[Chinese 中文网](https://www.bbc.com/zhongwen/simp)
[Dari دری](https://www.bbc.com/dari)
[French AFRIQUE](https://www.bbc.com/afrique)
[Hausa HAUSA](https://www.bbc.com/hausa)
[Hindi हिन्दी](https://www.bbc.com/hindi)
[Gaelic NAIDHEACHDAN](https://www.bbc.com/naidheachdan)
[Gujarati ગુજરાતીમાં સમાચાર](https://www.bbc.com/gujarati)
[Igbo AKỤKỌ N’IGBO](https://www.bbc.com/igbo)
[Indonesian INDONESIA](https://www.bbc.com/indonesia)
[Japanese 日本語](https://www.bbc.com/japanese)
[Kinyarwanda GAHUZA](https://www.bbc.com/gahuza)
[Kirundi KIRUNDI](https://www.bbc.com/gahuza)
[Korean 한국어](https://www.bbc.com/korean)
[Kyrgyz Кыргыз](https://www.bbc.com/kyrgyz)
[Marathi मराठी](https://www.bbc.com/marathi)
[Nepali नेपाली](https://www.bbc.com/nepali)
[Noticias para hispanoparlantes](https://www.bbc.com/mundo)
[Pashto پښتو](https://www.bbc.com/pashto)
[Persian فارسی](https://www.bbc.com/persian)
[Pidgin](https://www.bbc.com/pidgin)
[Polish PO POLSKU](https://www.bbc.com/polska)
[Portuguese BRASIL](https://www.bbc.com/portuguese)
[Punjabi ਪੰਜਾਬੀ ਖ਼ਬਰਾਂ](https://www.bbc.com/punjabi)
[Russian НА РУССКОМ](https://www.bbc.com/russian)
[Serbian NA SRPSKOM](https://www.bbc.com/serbian/lat)
[Sinhala සිංහල](https://www.bbc.com/sinhala)
[Somali SOMALI](https://www.bbc.com/somali)
[Swahili HABARI KWA KISWAHILI](https://www.bbc.com/swahili)
[Tamil தமிழில் செய்திகள்](https://www.bbc.com/tamil)
[Telugu తెలుగు వార్తలు](https://www.bbc.com/telugu)
[Thai ข่าวภาษาไทย](https://www.bbc.com/thai)
[Tigrinya ዜና ብትግርኛ](https://www.bbc.com/tigrinya)
[Turkish TÜRKÇE](https://www.bbc.com/turkce)
[Ukrainian УКРАЇНСЬКA](https://www.bbc.com/ukrainian)
[Urdu اردو](https://www.bbc.com/urdu)
[Uzbek O'ZBEK](https://www.bbc.com/uzbek)
[Vietnamese TIẾNG VIỆT](https://www.bbc.com/vietnamese)
[Welsh NEWYDDION](https://www.bbc.com/cymrufyw)
[Yoruba ÌRÒYÌN NÍ YORÙBÁ](https://www.bbc.com/yoruba)
Follow BBC on:
- [Terms of Use](https://www.bbc.com/pages/terms-of-use)
- [Subscription Terms](https://www.bbc.com/pages/subscription-terms)
- [About the BBC](https://www.bbc.co.uk/aboutthebbc)
- [Privacy Policy](https://www.bbc.com/pages/privacy-policy)
- [Cookies](https://www.bbc.com/usingthebbc/cookies/)
- [Accessibility Help](https://www.bbc.co.uk/accessibility/)
- [Contact the BBC](https://www.bbc.co.uk/contact)
- [Advertise with us](https://advertising.bbcstudios.com/)
- [Do not share or sell my info](https://www.bbc.com/usingthebbc/cookies/how-can-i-change-my-bbc-cookie-settings/)
- [BBC.com Help & FAQs](https://help.bbc.com/hc/)
- [Content Index](https://www.bbc.com/pages/content-index)
- [Set Preferred Source](https://www.bbc.com/future/article/20260128-how-to-make-google-put-trusted-sources-up-top-when-you-search)
Copyright 2026 BBC. All rights reserved. The BBC is not responsible for the content of external sites. [**Read about our approach to external linking.**](https://www.bbc.co.uk/editorialguidelines/guidance/feeds-and-links) |
| Readable Markdown | 13 May 2021
Getty Images
Elon Musk said cryptocurrency could "not come at great cost to the environment"
**Tesla has suspended vehicle purchases using Bitcoin due to climate change concerns, its CEO Elon Musk said in a tweet.**
Bitcoin fell by more than 10% after the tweet, while Tesla shares also dipped.
Tesla's announcement in March that it would accept the cryptocurrency was met with an outcry from some environmentalists and investors.
The electric carmaker had in February revealed it had bought \$1.5bn (£1bn) of the world's biggest digital currency.
- [Elon Musk's SpaceX to launch dogecoin moon mission](https://www.bbc.co.uk/news/business-57052811)
- [Bitcoin could derail China's climate change targets](https://www.bbc.co.uk/news/business-56671488)
- [How Bitcoin's vast energy use could burst its bubble](https://www.bbc.co.uk/news/science-environment-56215787)
But on Thursday, it backtracked on its previous comments.
"We are concerned about rapidly increasing use of fossil fuels for Bitcoin mining and transactions, especially coal, which has the worst emissions of any fuel," Mr Musk wrote.
"Cryptocurrency is a good idea... but this cannot come at great cost to the environment."
He also said the electric carmaker would not sell any of its Bitcoin, and intends to use it for transactions as soon as mining shifts to using more sustainable energy.
#### Allow X content?
This article contains content provided by X. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read
and
before accepting. To view this content choose **‘accept and continue’**.
The BBC is not responsible for the content of external sites. X content may contain adverts.

Market analysts see the move as an attempt by Tesla to assuage the concerns of investors who are focused on climate change and sustainability.
"Environmental, Social and Corporate Governance (ESG) issues are now a major motivation for many investors. Tesla, being a clean energy-focused company, might want to work better in the environmental area of ESG," Julia Lee from Burman Invest told the BBC.
"But a cynic might suggest that this is just another move by Elon Musk to influence the cryptocurrency market, as he has done on so many other occasions," she added.



Elon Musk is hardly ill-informed when it comes to both technology and the environment. When I interviewed him in 2016 he spoke passionately about Tesla's mission to make transport sustainable in the battle against the "existential threat" of climate change.
So it is somewhat surprising that he has only just woken up to the fact that Bitcoin is not exactly a green project. Cambridge University's Centre for Alternative Finance runs a Bitcoin Electricity Consumption Index. Right now, it shows that the process of mining the cryptocurrency - which involves using vast amounts of computer processing power - uses more electricity each year than Malaysia or Sweden and is closing in on the annual consumption of Egypt.
Bitcoin enthusiasts insist that mining mainly involves renewable energy - in truth, the miners focus on whatever is cheapest and in China, where many of them are based, that is often electricity generated by coal.
When he announced his grand cryptocurrency plans back in February - and made Tesla's chief financial officer "Master of Coin" - Elon Musk sparked a surge in the value of Bitcoin and the adoration of its fanatical devotees. Now with the price falling the chatrooms are full of the angry and disappointed - many of them sporting the glowing eyes Bitcoin avatar - accusing their former hero of betrayal.
A move which was hailed as signalling that Bitcoin was going mainstream has ended up showing just how volatile - and downright flaky - the whole cryptocurrency scene can be.

Last month, Tesla announced profits for the first three months of the year were \$438m, up from \$16m last year, boosted by sales of Bitcoin and environmental credits.
- [Tesla profits boosted by Bitcoin and green credits](https://www.bbc.co.uk/news/business-56897457)
Mr Musk has been one of the world's most high profile proponents of cryptocurrencies, often tweeting about Bitcoin and the once-obscure digital currency Dogecoin.
His tweets in recent months helped to turn Dogecoin, which was started as a social media joke, into the world's fourth-biggest cryptocurrency.
What are the climate concerns around Bitcoin?
Bitcoin is created by miners using high-powered computers to compete against each other to solve complex mathematical puzzles.
It is an energy-intensive process that often relies on electricity generated with fossil fuels, particularly coal.
The dominance of Chinese Bitcoin miners and lack of motivation to switch from cheap fossil fuels to more expensive renewable energy sources could mean there are few quick solutions to the emissions concerns over Bitcoin.
The cryptocurrency's carbon footprint is as large as one of China's 10 largest cities, the study found.
That is because those Bitcoin miners tend to use electricity produced with fossil fuels, primarily coal, for most of the year, only shifting to renewable energy, mostly hydropower, during the rainy summer months.
Bitcoin explained: How do cryptocurrencies work?
Supporters of Bitcoin point out that the mainstream financial system, with its millions of workers and computers in air-conditioned offices, also uses large amounts of electricity, which is usually produced with fossil fuels.
*Reporting by the BBC's Peter Hoskins* |
| Shard | 16 (laksa) |
| Root Hash | 1643509356818581016 |
| Unparsed URL | com,bbc!www,/news/business-57096305 s443 |