Detection and impacts of leakage from sub-seafloor deep geological carbon dioxide storage
Detection and impacts of leakage from sub-seafloor deep geological carbon dioxide storage
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DOI：
10.1038/nclimate2381
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发表时间：
2014-11-01
影响因子：
30.7
通讯作者：
Widdicombe, Steve
中科院分区：
文献类型：
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作者：
Blackford, Jerry;Stahl, Henrik;Widdicombe, Steve
化石燃料发电和其他工业排放的二氧化碳是对全球气候的威胁(1)，但许多经济体在几十年内仍将依赖这些技术(2)。深层地质构造中的二氧化碳捕获和储存(CCS)为从气候系统中消除这些排放提供了一个有效的选择(3)。在许多区域，储藏库位于近海(4，5)，在具有重要社会意义的陆架海下超过一公里或更深(6)。因此，对泄漏可能性的担忧(7，8)和潜在的环境影响，以及经济问题，都导致了运营CCS的延迟开发。在这里，我们调查了海底下受控释放的二氧化碳泄漏的可探测性和环境影响。我们证明了这种小型泄漏模拟物的生物影响和足迹(
Fossil fuel power generation and other industrial emissions of carbon dioxide are a threat to global climate(1), yet many economies will remain reliant on these technologies for several decades(2). Carbon dioxide capture and storage (CCS) in deep geological formations provides an effective option to remove these emissions from the climate system(3). In many regions storage reservoirs are located offshore(4,5), over a kilometre or more below societally important shelf seas(6). Therefore, concerns about the possibility of leakage(7,8) and potential environmental impacts, along with economics, have contributed to delaying development of operational CCS. Here we investigate the detectability and environmental impact of leakage from a controlled sub-seabed release of CO2. We show that the biological impact and footprint of this small leak analogue (