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首页> 外文期刊>International Journal of Global Warming >A method for estimating the cost to sequester carbon dioxide by delivering iron to the ocean
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A method for estimating the cost to sequester carbon dioxide by delivering iron to the ocean

机译：通过将铁运送到海洋来估算二氧化碳隔离成本的方法

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摘要

The need to find economical methods of C0_2 sequestration is now urgent. Ocean iron fertilisation has been suggested as a low cost mitigation option to capture and store carbon. However, previous methods of estimating the cost fail to account for manyof the losses and offsets occurring over the storage period. A method for calculating the net carbon stored from iron fertilisation of high nutrient low chlorophyll ocean regions is provided. Ship based fertilisation of the Southern Ocean is consideredas a case study, on average, a single fertilisation is found to result in a net sequestration of 0.01 t C km~2 for 100 years at a cost of US$457 per tonne C0_2. Previous estimates of cost underestimate the economic challenge of distributing low concentrations of iron over large areas of the ocean surface, and the subsequent loss processes that result in only a small net storage of carbon per km~2 fertilised. Technologies that could lower the cost are discussed.
机译：现在迫切需要找到经济的CO 2螯合方法。有人建议将海洋铁肥作为捕获和储存碳的低成本缓解方法。但是，先前的成本估算方法无法解决存储期间发生的许多损失和抵销。提供了一种计算高养分低叶绿素海洋区域铁肥储存的净碳的方法。以海洋为基础的船舶施肥被认为是一个案例研究，平均而言，单次施肥可导致100年的净螯合0.01 t C km〜2，每吨CO 2的成本为457美元。以前的成本估算低估了将低浓度铁分布在大面积海洋表面上的经济挑战，而随后的损失过程导致每km〜2受精的碳净储量很小。讨论了可以降低成本的技术。

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