Scientists have developed ways to relatively quickly turn carbon dioxide captured from power plants to a solid for long-term storage.
TL;DR:
They tested it at at Iceland’s Hellisheidi Power Plant and within two years, 95 percent of the injected CO2 had turned to mineral – far faster than the 8–12 years originally expected.
They mix it with water and hydrogen sulfide, creating soda-like carbonation, then inject the mixture into porous basalt rocks 400 to 800 meters underground.
“Iceland was a key demonstration. The holy grail is off-shore”
They also want to pull CO2 from the environment.
some guy on HN did the math
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