Let the earth help to save the earth
That nature is being cleaning up CO2 for billions of years is probably new. And that the mineral olivine plays a crucial role in that process is probably new as well. Over more than fifty years, geologist Olaf Schuiling has been working to explore all the aspects of the Climate Change.
"Since the beginning of the earth, about 400 million tons of CO2 per year have been ejected by volcanoes and if that would have remained in the atmosphere, no life was possible. But there is life, that means there must be a process that has caught almost all CO2."
Sequestering CO2 with olivine by enhanced weathering
Olaf Schuiling: "It sounds prosaic, but the process is weathering of rocks. Rocks are reacting with water and CO2 and produce hydrogen carbonate solutions. Through the rivers the solutions flow towards the oceans, where corals, shellfish and plankton use the solutions to create calcareous limes. When the organisms die, their calcareous limbs fail to the seabed, where they become limestone. Limestone contain almost all the CO2 that has been emitted by the volcanoes. That's how I got the idea of Olivijn, a very common mineral with a enhanced weathering. You can read everything about olivine in my book: Olivine, the Philosopher's Stone."
source Utrecht University