A geological perspective on global warming and the possibility of carbon dioxide removal as calcium carbonate mineral

Nature removes carbon dioxide from the atmosphere through photosynthesis, and by forming carbonate minerals. Following Nature's example, carbon dioxide should not be regarded as a waste, but as a resource from which useful products can be made. Highly concentrated, calcium-rich brines are commonly found associated with subsurface salt deposits. By bringing together the energy and chemical industries, it may be possible to use these brines to lock up carbon dioxide, while at the same time producing calcium carbonate, hydrochloric acid and a variety of other chemical-industrial commodities.