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Scientists Find Way To Make Mineral Which Can Remove CO2 From Atmosphere (phys.org)

An anonymous reader quotes a report from Phys.Org: Scientists have found a rapid way of producing magnesite, a mineral which stores carbon dioxide. If this can be developed to an industrial scale, it opens the door to removing CO2 from the atmosphere for long-term storage, thus countering the global warming effect of atmospheric CO2. This work is presented at the Goldschmidt conference in Boston. Now, for the first time, researchers have explained how magnesite forms at low temperature, and offered a route to dramatically accelerating its crystallization. A tonne of naturally-occurring magnesite can remove around half a tonne of CO2 from the atmosphere, but the rate of formation is very slow. The researchers were able to show that by using polystyrene microspheres as a catalyst, magnesite would form within 72 days. The microspheres themselves are unchanged by the production process, so they can ideally be reused. Project leader, Professor Ian Power from Trent University in Ontario added: "Using microspheres means that we were able to speed up magnesite formation by orders of magnitude. This process takes place at room temperature, meaning that magnesite production is extremely energy efficient. For now, we recognize that this is an experimental process, and will need to be scaled up before we can be sure that magnesite can be used in carbon sequestration (taking CO2 from the atmosphere and permanently storing it as magnesite). This depends on several variables, including the price of carbon and the refinement of the sequestration technology, but we now know that the science makes it do-able."

3 of 307 comments (clear)

  1. Re:Thus countering... by Oswald+McWeany · · Score: 1, Troll

    If you wanted to reduce water vapor - plant trees, limit urban sprawl and have more green spaces... ... AND REDUCE CO2 EMMISSIONS.

    The warming earth causes more water vapor to be in the air.

    --
    "That's the way to do it" - Punch
  2. Re:Techno Salvation by Anonymous Coward · · Score: 0, Troll

    We don't have any concrete studies that show CO2 absorption rate of forest regions to go by. That's the problem you don't know what your talking about. Your just spewing I know better than you garbage because I believe in global warming religion nonsense.

  3. Re:Take a lesson. by laie_techie · · Score: 1, Troll

    Less people is STILL the best idea. The world needs free, easily accessible contraception, not a smaller smartphone.

    The most efficient contraceptive is abstinence! No sex means sperm doesn't meet egg which means no birth (* Christians believe that Jesus was NOT the product of sex). Every other method will fail at least some of the time.