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Geoengineering through olivine dispersal

机译:通过橄榄石扩散进行地球工程

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摘要

Climate researchers predict that rising anthropogenic carbon emissions may lead to increasing global surface temperatures and ocean acidification. While geoengineering schemes such as solar radiation management and atmospheric CO2 removal propose to slow global warming, many do not address the problem of ocean acidification, which could threaten marine organisms. Peter Kohler et al. (pp. 20228-20233) use chemical equations of the marine carbonate system together with computer simulations to investigate the potential for carbon sequestration and marine de-acidification by dispersing magnesium silicate (Mg2SiO4 or olivine) in tropical regions. The researchers estimate that one ton of dispersed olivine could sequester, at best, an equivalent mass of CO2, a value the authors say is approximately 20% smaller than previously assumed.
机译:气候研究人员预测,人为碳排放量的上升可能导致全球地表温度升高和海洋酸化。虽然诸如太阳辐射管理和去除大气中的二氧化碳之类的地球工程计划提议减缓全球变暖,但许多计划并未解决可能会威胁海洋生物的海洋酸化问题。彼得·科勒(Peter Kohler)等。 (pp。20228-20233)使用海洋碳酸盐系统的化学方程式和计算机模拟,通过将硅酸镁(Mg2SiO4或橄榄石)分散在热带地区,研究了碳固存和海洋脱酸的潜力。研究人员估计,一吨分散的橄榄石充其量只能封存同等质量的CO2,作者说这个值比以前的假设小了约20%。

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