Snæbjörnsdóttir, Sandra Ó., Bergur Sigfússon, Chiara Marieni, David Goldberg, Sigurður R. Gislason, and Eric H. Oelkers (2020): Carbon Dioxide Storage through Mineral Carbonation. Nature Reviews Earth & Environment, January. https://doi.org/10.1038/s43017-019-0011-8.

"In this Review, we discuss the potential of mineral carbonation to address the global CCS challenge and contribute to long-term reductions in atmospheric CO₂."

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"A method and a system capable of removing carbon dioxide directly from ambient air, and obtaining relatively pure CO₂. The method comprises the steps of generating usable and process heat from a primary production process, applying the process heat from said primary process to co-generate substantially saturated steam, alternately repeatedly exposing a sorbent to removal and to capture regeneration system phases, wherein said sorbent is alternately exposed to a flow of ambient air during said removal phase, to sorb, and therefore remove, carbon dioxide from said ambient air, and to a flow of the process steam during the regeneration and capture phase, to remove the sorbed carbon dioxide, thus regenerating such sorbent, and capturing in relatively pure form the removed carbon dioxide."

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"In 1991, an Exxon subsidiary calculated the need for a price of $75 per ton of carbon dioxide to stabilize Canada's carbon emissions—a steep price much higher than even today’s consensus views."

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"The cryptocurrency would pay farmers to capture the gas by using sustainable farming techniques that promote the growth of microbes and bacteria in topsoil. The microscopic organisms pull CO2 out of the air and hold it in the ground where it won’t heat the planet."

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