Driving China on December 14, 2021, Elon Musk, founder of space exploration technology company (SpaceX), said that plans to use carbon dioxide in the atmosphere as rocket fuel have been launched.
He tweeted on Dec. 13: "SpaceX is launching a program to separate carbon dioxide from the atmosphere and convert it into rocket fuel. ”
He noted that the implementation of this plan may benefit flights to Mars. The Martian atmosphere is dominated by carbon dioxide.
Previously, Musk has repeatedly mentioned plans to colonize Mars and is building a Starship rocket for this purpose.

At the end of November, it was revealed that Musk was angry at SpaceX's lack of progress in developing a Raptor engine to power its Starship rockets.
"The raptor engine production crisis is much more serious than it seemed a few weeks ago," Musk wrote. "If we don't achieve starship flights at least every two weeks next year, we're at real risk of bankruptcy."