Recently, the Swiss company Climeworks claimed to have successfully captured carbon dioxide from the air, turned it into rock, and put it underground.
This is the first time a company has successfully removed carbon dioxide from the atmosphere, sent it underground for permanent storage, and transferred the technology to permanently remove carbon.
Process technology development has been a long time. Christoph Gerald and Jan Wurzbacher co-founded Climeworks in 2009 as a subsidiary of ETH Zürich, the main technical university in Switzerland's largest city. Scientists have scaled up direct carbon removal technology, using machines that suck greenhouse gases out of the air.

Over the past few years, Microsoft, Stripe, and Shopify have purchased future carbon removal services from Climeworks to help kickstart this nascent industry. By this time, Climeworks is removing carbon dioxide and putting CO2 underground in a process, certified by DNV (Det Norske Veritas), a reputable independent international auditor.
The cost of carbon dioxide removal and storage for these corporate customers has not been disclosed, depending on how much carbon dioxide the companies want to remove and over what period. But the overall price to remove carbon is up to several hundred dollars per ton. Individuals can also pay Climeworks to remove carbon dioxide to offset personal emissions.

In addition to attracting corporate clients to pay for future CO2 removals, Climeworks raised over $780 million to scale from multiple investors.
Climeworks' largest carbon dioxide removal facility is located in Iceland, partnering with CarbFix to store greenhouse gases underground. CarbFix dissolves carbon dioxide in water, then mixes that mixture with the main components of basalt. Natural processes will convert the mixture of materials into solid carbonate minerals in about 2 years.

In June 2022, Climeworks announced the start of construction of its second commercial-scale plant in Iceland, which will capture and store 36,000 tonnes of carbon dioxide per year. Even when completed, that stored CO2 would represent only a very small percentage of the total global carbon dioxide emissions released into the air each year. In 2021, according to the International Energy Agency, CO2 emissions will reach a record high of 36.3 billion tons.

According to moitruongvadothi.vn