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Elon Musk. Photo: Liesa Johannssen-Koppitz/Bloomberg via Getty Images

Consumers can no longer buy Tesla vehicles with bitcoin, CEO Elon Musk announced on Twitter Wednesday.

What he's saying: Musk cited the environmental concerns associated with bitcoin — the cryptocurrency has a massive carbon footprint — as his reasoning behind Wednesday's decision.

"Tesla has suspended vehicle purchases using bitcoin," Musk said.

  • "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."
  • "Cryptocurrency is a good idea on many levels and we believe it has a promising future."
  • "[W]e intend to use it as soon as mining transitions to more sustainable energy," he said, adding that Tesla is considering other cryptocurrencies that consume less energy.

Flashback: Musk in March approved the use of the cryptocurrency for Tesla purchases in the U.S. Some critics at the time said the move could tarnish the company's environmentally friendly image.

Our thought bubble, from Axios' Ina Fried: The energy issues related to Bitcoin have been long known and less energy consuming options have been available for some time.

Go deeper

Updated 5 mins ago - Science

NTSB probes crash that killed 10 in Alabama as storm hits Southeast, Midwest

Flash-flooding in Bloomington, Indiana, on Saturday. Photo: Jeremy Hogan/SOPA Images/LightRocket via Getty Images

The National Transportation Safety Board announced Sunday that it's sent a team to Alabama to help investigate a fiery multi-vehicle weekend crash that killed 10 people, including nine children.

The big picture: Saturday's crash, south of Montgomery, occurred amid a tropical depression that left 13 people dead in Alabama as it triggered flash floods and spawned tornadoes that razed "dozens of homes" in the Southeast over the weekend, per AP. Parts of the Midwest, including Indiana and Chicago, where a tornado struck late Sunday.

Laurel Hubbard to become 1st openly trans athlete to compete at Olympics

New Zealand's Laurel Hubbard at the Gold Coast 2018 Commonwealth Games in Australia, when she became the first openly transgender athlete to represent NZ. Photo: Scott Barbour/Getty Images

The New Zealand Olympic Committee has announced that Laurel Hubbard has been selected for the women's weightlifting team for the Tokyo Games — making her the first openly transgender athlete to compete at the event.

The big picture: Hubbard, 43, is part of a five-member Kiwi weightlifting team and will compete in the women's super heavyweight category. Meanwhile, BMX rider Chelsea Wolfe will become the first openly trans athlete to travel to the Olympics with Team USA, when she arrives in Tokyo as a reserve rider.

American Airlines cuts hundreds of flights amid demand surge

Photo: Joe Raedle/Getty Images

American Airlines announced Sunday that it's cutting some 950 flights from its schedule, including 296 this weekend, to reduce potential pressure on its operations, the Wall Street Journal first reported.

Driving the news: The U.S. vaccine rollout has led to a massive increase in travel bookings. The airline noted in an emailed statement that it's facing an "incredibly quick ramp up of customer demand."