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  Negative emissions - Part 2: Costs, potentials and side effects

Fuss, S., Lamb, W. F., Callaghan, M. W., Hilaire, J., Creutzig, F., Amann, T., Beringer, T., Oliveira Garcia, W. d., Hartmann, J., Khanna, T., Luderer, G., Nemet, G. F., Rogelj, J., Smith, P., Vicente, J. L. V., Wilcox, J., Mar Zamora Dominguez, M. d., Minx, J. C. (2018): Negative emissions - Part 2: Costs, potentials and side effects. - Environmental Research Letters, 13, 6, 063002.
https://doi.org/10.1088/1748-9326/aabf9f

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 Creators:
Fuss, S.1, Author
Lamb, W. F.1, Author
Callaghan, M. W.1, Author
Hilaire, Jérôme2, Author              
Creutzig, F.1, Author
Amann, T.1, Author
Beringer, T.1, Author
Oliveira Garcia, W. de1, Author
Hartmann, J.1, Author
Khanna, T.1, Author
Luderer, Gunnar2, Author              
Nemet, G. F.1, Author
Rogelj, J.1, Author
Smith, P.1, Author
Vicente, J. L. V.1, Author
Wilcox, J.1, Author
Mar Zamora Dominguez, M. del1, Author
Minx, J. C.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Abstract: The most recent IPCC assessment has shown an important role for negative emissions technologies (NETs) in limiting global warming to 2 °C cost-effectively. However, a bottom-up, systematic, reproducible, and transparent literature assessment of the different options to remove CO2 from the atmosphere is currently missing. In part 1 of this three-part review on NETs, we assemble a comprehensive set of the relevant literature so far published, focusing on seven technologies: bioenergy with carbon capture and storage (BECCS), afforestation and reforestation, direct air carbon capture and storage (DACCS), enhanced weathering, ocean fertilisation, biochar, and soil carbon sequestration. In this part, part 2 of the review, we present estimates of costs, potentials, and side-effects for these technologies, and qualify them with the authors' assessment. Part 3 reviews the innovation and scaling challenges that must be addressed to realise NETs deployment as a viable climate mitigation strategy. Based on a systematic review of the literature, our best estimates for sustainable global NET potentials in 2050 are 0.5–3.6 GtCO2 yr−1 for afforestation and reforestation, 0.5–5 GtCO2 yr−1 for BECCS, 0.5–2 GtCO2 yr−1 for biochar, 2–4 GtCO2 yr−1 for enhanced weathering, 0.5–5 GtCO2 yr−1 for DACCS, and up to 5 GtCO2 yr−1 for soil carbon sequestration. Costs vary widely across the technologies, as do their permanency and cumulative potentials beyond 2050. It is unlikely that a single NET will be able to sustainably meet the rates of carbon uptake described in integrated assessment pathways consistent with 1.5 °C of global warming.

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 Dates: 2018
 Publication Status: Finally published
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/1748-9326/aabf9f
PIKDOMAIN: Sustainable Solutions - Research Domain III
eDoc: 8386
Research topic keyword: CO2 Removal
Research topic keyword: 1.5/2°C limit
Research topic keyword: Mitigation
Model / method: Model Intercomparison
Regional keyword: Global
Organisational keyword: RD3 - Transformation Pathways
Working Group: Energy Systems
 Degree: -

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Title: Environmental Research Letters
Source Genre: Journal, SCI, Scopus, p3, oa
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Pages: - Volume / Issue: 13 (6) Sequence Number: 063002 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/150326