SEQUESTERING ATMOSPHERIC CARBON-DIOXIDE BY INCREASING OCEAN ALKALINITY
SEQUESTERING ATMOSPHERIC CARBON-DIOXIDE BY INCREASING OCEAN ALKALINITY
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DOI：
10.1016/0360-5442(95)00035-f
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发表时间：
1995-09-01
期刊：
影响因子：
9
通讯作者：
KHESHGI, HS
中科院分区：
文献类型：
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作者：
KHESHGI, HS
我们提出了一个初步的分析地球工程选择的基础上有意增加海洋碱度，以提高海洋储存的大气CO2。与所有限制气候变化的地球工程技术一样，由于今天对气候系统的了解有限，这种方法必须被视为一种潜在的战略选择，需要不断进行评估，以确定其潜在的好处和副作用。如果海洋碱度升高，海洋将以更快的速度从大气中吸收二氧化碳。将碱性矿物的溶解产物引入海洋，可以提高海洋的碱度。天然存在的苏打灰（Na2CO3）的有限沉积物易于溶解且易于开采。石灰石（CaCO3）在地壳中含量丰富，但不易溶解。本分析探讨了此类方法的潜在可行性和局限性。
We present a preliminary analysis of a geoengineering option based on the intentional increase of ocean alkalinity to enhance marine storage of atmospheric CO2. Like all geoengineering techniques to limit climate change, with today's limited understanding of the climate system, this approach must be regarded as a potential strategic option that requires ongoing assessment to establish its potential benefits and side effects. CO2 would be absorbed from the atmosphere by the oceans at an increased rate if ocean alkalinity were raised. Ocean alkalinity might be raised by introducing the dissolution products of alkaline minerals into the oceans. The limited deposits of naturally occurring soda ash (Na2CO3) are readily soluble and easily mined. Limestone (CaCO3) is abundant in the Earth's crust but is not readily soluble. This analysis explores the potential feasibility and limits of such approaches.