04.11.2018

# New Publications

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Eufrasio-Espinosa, R.; et al. (2018): The UK Path and the Role of NETs to Achieve Decarbonisation

Eufrasio-Espinosa, R.; Lenny Koh, S. (2019): The UK Path and the Role of NETs to Achieve Decarbonisation. In: Narasinha Shurpali, Avinash Kumar Agarwal und V. K. Srivastava (Hg.): GREENHOUSE GAS EMISSIONS. Challenges, technologies and solutions, Bd. 36. [S.l.]: Springer (Energy, Environment, and Sustainability), S. 87–109.

"The objective of this chapter is to present a review of the current state of the greenhouse gas emissions in the UK and describe what factors are influencing the recent decline of CO2 levels. We also provide a general overview of the strategies leading to the transition into a low-carbon economy and the sectors contributing to this process. Finally, we explore whether negative emissions technologies are ready for implementation in UK’s decarbonisation path."

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04.11.2018

# New Publications

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Markusson, N.; et al. (2018): Towards a cultural political economy of mitigation deterrence by negative emissions technologies (NETs)

Markusson, N.; McLaren, D.; Tyfield, D. (2018): Towards a cultural political economy of mitigation deterrence by negative emissions technologies (NETs). In: Glob. Sustain. 1, S. 180. DOI: 10.1017/sus.2018.10.

"In the face of limited carbon budgets, negative emissions technologies (NETs) offer hopes of removing greenhouse gases from the atmosphere. It is difficult to determine whether the prospect of NETs is significantly deterring or delaying timely action to cut emissions. This paper sets out a novel theoretical perspective to this challenge, enabling analysis that accounts for interactions between technologies, society and political and economic power. The paper argues that, seen in this light, the scope of NETs to substitute for mitigation may be easily exaggerated, and thus that the risk of harm from mitigation deterrence should be taken seriously."

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04.11.2018

# New Publications

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Emmerling, J.; et al. (2018): Exploration of the interactions between mitigation and solar radiation management in cooperative and non-cooperative international governance settings

Emmerling, J.; Tavoni, M. (2018): Exploration of the interactions between mitigation and solar radiation management in cooperative and non-cooperative international governance settings. In: Global Environmental Change 53, S. 244–251. DOI: 10.1016/j.gloenvcha.2018.10.006.

"This paper provides an evaluation of the risks of excess climate engineering due to lack of international cooperation. Using both an analytical and numerical model, we show how lack of cooperation leads to overprovision of climate engineering above what would be socially optimal. The regions with the highest climate change impacts deploy climate engineering at the expenses of the others. Yet, these poor countries still host the majority of the residual climate change impacts. These results suggest the importance of embedding climate engineering in the international climate policy debate."

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04.11.2018

# New Publications

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Duan, L.; et al. (2018): Comparison of the Fast and Slow Climate Response to Three Radiation Management Geoengineering Schemes

Duan, L.; Cao, L.; Bala, G.; Caldeira, K. (2018): Comparison of the Fast and Slow Climate Response to Three Radiation Management Geoengineering Schemes. In: J. Geophys. Res. Atmos. DOI: 10.1029/2018JD029034.

"Geoengineering has been proposed as a backup approach to rapidly cool the Earth and avoid damages associated with anthropogenic climate change. In this study, we use the NCAR Community Earth System Model (CESM) to conduct a series of slab‐ocean and prescribed sea‐surface‐temperature simulations to investigate the climate response to three proposed radiation management geoengineering schemes: stratospheric aerosol increase (SAI), marine cloud brightening (MCB), and cirrus cloud thinning (CCT)."

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03.11.2018

# New Publications

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Fasullo, J.; et al. (2018): Persistent polar ocean warming in a strategically geoengineered climate

Fasullo, J.; Tilmes, S.; Richter, J.; Kravitz, B.; MacMartin, D.; Mills, M.; Simpson, I. (2018): Persistent polar ocean warming in a strategically geoengineered climate. In: Nature Geosci. DOI: 10.1038/s41561-018-0249-7.

"Enhancement of the Earth’s albedo through the injection of sulfate aerosols into the stratosphere has been proposed as an approach to offset some of the adverse effects of climate change. Here we analyse an ensemble of simulations of the twenty-first century climate designed to explore a strategic geoengineering approach. Specifically, stratospheric sulfur injections are imposed at 15° and 30° in both hemispheres with the aim to minimize the changes in surface temperature, both in the global mean and in its gradients between hemispheres and from equator to pole."

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03.11.2018

# New Publications

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Geden, O.; et al. (2018): Targeting carbon dioxide removal in the European Union

Geden, O.; Peters, G.; Scott, V. (2018): Targeting carbon dioxide removal in the European Union. In: Climate Policy, S. 1–8. DOI: 10.1080/14693062.2018.1536600.

"Here we assess how best to ‘target’ CDR to motivate EU policymakers exploring which CDR target strategy may work best to start dealing with CDR on a meaningful scale. A comprehensive CDR approach would focus on delivering the CDR volumes required from the EU by 2100, approximately at least 50 Gigatonnes (Gt) CO2, according to global model simulations aiming to keep warming below 2°C. A limited CDR approach would focus on an intermediate target to deliver the CDR needed to reach ‘net zero emissions’ (i.e. the gross negative emissions needed to offset residual positive emissions that are too expensive or even impossible to mitigate). We argue that a comprehensive CDR approach may be too intimidating for EU policymakers."

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29.10.2018

# New Publications

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Khurram, A.; et al. (2018): Tailoring the Discharge Reaction in Li-CO2 Batteries through Incorporation of CO2 Capture Chemistry

Khurram, A.; He, M.; Gallant, B. (2018): Tailoring the Discharge Reaction in Li-CO2 Batteries through Incorporation of CO2 Capture Chemistry. In: Joule. DOI: 10.1016/j.joule.2018.09.002.

"This work presents the design and study of a novel chemistry for post-combustion CO2 capture and conversion. We show that adding a CO2 capture agent such as an alkyl amine into an organic, Li+-containing electrolyte yields a new redox-active species that can be directly reduced at a catalyst-free carbon electrode in a Li-CO2 battery with high discharge voltage and capacity. The central advance reported herein is the first-time coupling of CO2 capture chemistry to nonaqueous electrochemistry, which opens up new avenues for realizing electrochemical CO2 transformations with high selectivity."

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29.10.2018

# New Publications

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Fridahl, M. (Ed.) (2018): Bioenergy with carbon capture and storage. From global potentials to domestic realities

Fridahl, M. (Ed.) (2018): Bioenergy with carbon capture and storage. From global potentials to domestic realities. Brussels: The European Liberal Forum. Online verfügbar unter http://fores.se/wp-content/uploads/2018/10/BECCS_Fridahl_editor.pdf, 29.10.2018.

"This book explores the role of bioenergy with carbon capture and storage (BECCS) in climate governance. It starts by discussing BECCS’ global mitigation potential, as depicted in the idealized world of climate scenarios. Chapter 2 shows that almost all climate scenarios compatible with the high likelihood of limiting global warming to 2°C deploy BECCS. While excluding BECCS from these models’ technology portfolios does not necessarily make 2°C compatible scenarios impossible, it does mean that the projected cost of meeting that goal increases."

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25.10.2018

# New Publications

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Gunnarsson, I.; et al. (2018): The rapid and cost-effective capture and subsurface mineral storage of carbon and sulfur at the CarbFix2 site

Gunnarsson, I.; Aradóttir, E.; Oelkers, E.; Clark, D.; Arnarson, M.; Sigfússon, B. et al. (2018): The rapid and cost-effective capture and subsurface mineral storage of carbon and sulfur at the CarbFix2 site. In: International Journal of Greenhouse Gas Control 79, S. 117–126. DOI: 10.1016/j.ijggc.2018.08.014.

"Here we present a novel integrated carbon capture and storage technology, installed at the CarbFix2 storage site at Hellisheiði, Iceland that lowers considerably the cost and energy required at this site. The CarbFix2 site, located in deeper and hotter rocks than the original CarbFix site, permits the continuous injection of larger quantities of CO2 and H2S than the original site. The integrated process consists of soluble gas mixture capture in water followed by the direct injection of the resulting CO2-H2S-charged water into basaltic rock, where much of the dissolved carbon and sulfur are mineralized within months."

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25.10.2018

# New Publications

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Fajardy, M.; et al. (2018): Investigating the BECCS resource nexus

Fajardy, M.; Chiquier, S.; Mac Dowell, N. (2018): Investigating the BECCS resource nexus. Delivering sustainable negative emissions. In: Energy Environ. Sci. 11, S. 1581. DOI: 10.1039/C8EE01676C.

"In this study, we present a series of thought experiments, using the Modelling and Optimisation of Negative Emissions Technologies (MONET) framework, to provide insight into the combinations of biomass feedstock, origin, land type, and transport route, to meet a given CO2 removal target. The optimal structure of an international BECCS supply chain was found to vary both quantitatively and qualitatively as the focus shifted from conserving water, land or biomass, to maximising energy generated, with the water use in particular increasing threefold in the land and biomass use minimisation scenario, as compared to the water minimisation scenario."

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