Fossil fuels in a trillion tonne world.

Scott, Vivian, Haszeldine, R. Stuart, Tett, Simon F. B. and Oschlies, Andreas (2015) Fossil fuels in a trillion tonne world. Nature Climate Change, 5 (5). pp. 419-423. DOI 10.1038/nclimate2578.

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The useful energy services and energy density value of fossil carbon fuels could be retained for longer timescales into the future if their combustion is balanced by CO2 recapture and storage. We assess the global balance between fossil carbon supply and the sufficiency (size) and capability (technology, security) of candidate carbon stores. A hierarchy of value for extraction-to-storage pairings is proposed, which is augmented by classification of CO2 containment as temporary (<1,000 yr) or permanent (>100,000 yr). Using temporary stores is inefficient and defers an intergenerational problem. Permanent storage capacity is adequate to technically match current fossil fuel reserves. However, rates of storage creation cannot balance current and expected rates of fossil fuel extraction and CO2 consequences. Extraction of conventional natural gas is uniquely holistic because it creates the capacity to re-inject an equivalent tonnage of carbon for storage into the same reservoir and can re-use gas-extraction infrastructure for storage. By contrast, balancing the extraction of coal, oil, biomass and unconventional fossil fuels requires the engineering and validation of additional carbon storage. Such storage is, so far, unproven in sufficiency.

Document Type: Article
Additional Information: WOS:000354891900016
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BM Biogeochemical Modeling
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1038/nclimate2578
ISSN: 1758-678X
Projects: Future Ocean
Date Deposited: 27 Apr 2015 12:33
Last Modified: 19 Dec 2017 12:43

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