Kategorie: New Publications

Simon (2023): Material flows and embodied energy of direct air capture: A cradle-to-gate inventory of selected technologies

Balint Simon IN: Journal of Industrial Ecology, https://doi.org/10.1111/jiec.13357

The present study analyzes three selected DAC technologies: Amine-based adsorption and absorption, as well as alkali-based absorption. The parametrized model includes over 60 parameters, resulting in an array of possible energy and material requirements. The use of this wide range of figures in life cycle assessment (LCA) sheds light on real opportunities for DAC in future product systems.


Galán et al. (2023): Systematic comparison of natural and engineering methods of capturing CO2 from the air and its utilization

Guillermo Galán, Mariano Martín, Ignacio E. Grossmann IN: Sustainable Production and Consumption 37, pp. 78-95, https://doi.org/10.1016/j.spc.2023.02.011

In this work, a comprehensive techno-economic comparison based on systematic process design of CO2 capture technologies from the air is performed. Biomass and direct air capture (DAC) are considered as well as the further utilization of CO2


Lund et al. (2023): Net zero and the unexplored politics of residual emissions

Jens Friis Lund, Nils Markusson, Wim Carton, Holly Jean Buck IN: Energy Research & Social Science 98, 103035, https://doi.org/10.1016/j.erss.2023.103035

In this perspective article, the authors call for more engagement with the unexplored politics of residual emissions. With the mainstreaming of net zero as the long-term goal of climate policy, the politics of residual emissions are set to become a key point of contestation. Claims about residual emissions tend to revolve around notions of necessity and possibility, i.e. emissions that derive from activities deemed socially necessary yet impossible to fully abate. The authors highlight how such claims are socially constructed and ultimately contingent on values, norms and interests.


Matamala et al. (2023): Probabilistic feasibility assessment of sequestration reliance for climate targets

Yolanda Matamala, Francisco Flores, Andrea Arriet, Zarrar Khan, Felipe Feijoo IN: Energy, https://doi.org/10.1016/j.energy.2023.127160

This study emphasizes the relevance of variability in carbon sequestration for achieving climate targets by 2050. This paper proposes a probabilistic approach that integrates the Global Change Analysis Model for Latin America (GCAM-LA) with a chance constraint approach. GCAM-LA is used to assess the impact on the energy sector of different limits of sustainable biomass and carbon budget scenarios. The risk associated with exceeding the sequestration capacity of a given region is modeled via Chance Constraint.


Nature – Buck et al. (2023): Why residual emissions matter right now

Holly Jean Buck, Wim Carton, Jens Friis Lund, Nils Markusson IN: Nat. Clim. Chang. (2023). https://doi.org/10.1038/s41558-022-01592-2

Net-zero targets imply that continuing residual emissions will be balanced by carbon dioxide removal. However, residual emissions are typically not well defined, conceptually or quantitatively. The authors analysed governments’ long-term strategies submitted to the UNFCCC to explore projections of residual emissions, including amounts and sectors.


Nature – Fuhrman et al. (2023): Diverse carbon dioxide removal approaches could reduce impacts on the energy–water–land system

Jay Fuhrman,  Candelaria Bergero,  Maridee Weber,  Seth Monteith,  Frances M. Wang,  Andres F. Clarens,  Scott C. Doney,  William Shobe, Haewon McJeon IN: Nat. Clim. Chang. (2023). https://doi.org/10.1038/s41558-023-01604-9 

The authors use an integrated assessment model to assess a complete suite of CDR approaches including bioenergy with carbon capture and storage, afforestation, direct air capture with carbon storage, enhanced weathering, biochar and direct ocean capture with carbon storage. CDR provided by each approach spans three orders of magnitude, with deployment and associated impacts varying between regions.


Prado et al. (2023): Assessing the impact of CDR on the power system

Augustin Prado, Solene Chiquier, Mathilde Fajardy, Niall Mac Dowell IN: IScience; https://doi.org/10.1016/j.isci.2023.106303

The co-deployment of CDR will have a substantial impact on the broader energy system, with BECCS providing energy services and DACCS consuming them. Thus, in this contribution the authors present a framework for the co-optimisation of the power and CDR sectors and apply it to the United Kingdom as a case study. They identify techno-economically and biogeophysically feasible pathways to meeting targets via the deployment of a portfolio of CDR pathways.


Zhong et al. (2023): A systematic overview, trends and global perspectives on blue carbon: A bibliometric study (2003–2021)

Chongming Zhong, Tancheng Li, Ran Bi, Edmond Sanganyado, Jiahong Huang, Shuangcheng Jiang, Zezhi Zhang, Hong Du IN: Ecological Indicators 148, 110063, https://doi.org/10.1016/j.ecolind.2023.110063

This paper bibliometrically and systematically analyzed 2,613 studies found in the Web of Science Core Collection (WoSCC) from 2003 to 2021 to explore the hotspots and trends of blue carbon research using the Bibliometrix package in R studio and VOSviewer software.


Zakrisson et al. (2023): Climate impact of bioenergy with or without carbon dioxide removal: influence of functional unit and parameter variability

Lisa Zakrisson, Elias S. Azzi, Cecilia Sundberg IN: The International Journal of Life Cycle Assessment, https://doi.org/10.1007/s11367-023-02144-2

This study examined the circumstances and methodological choices in which two CDR bioenergy systems were preferable to a reference bioenergy system from a climate change mitigation perspective. Three systems were modelled: two CDR systems (Biochar, bioenergy with carbon capture and storage (BECCS)), with a combined heat and power (CHP) system as reference. A parameterised life cycle inventory (LCI) model was developed and computed for all systems and four different functional units (FUs), resulting in different distributions of climate impacts.


Boettcher et al. (2023): The formative phase of German carbon dioxide removal policy: Positioning between precaution, pragmatism and innovation

Miranda Boettcher, Felix Schenuit, Oliver Geden IN: Energy Research & Social Science 98, 103018, https://doi.org/10.1016/j.erss.2023.103018

Although still relatively scarce, empirical studies on the emergence of carbon dioxide removal (CDR) on the political agenda have shown that variations in the constellations and positions of policy-relevant actors play a key role in shaping patterns of CDR policymaking. The German and wider European Union (EU) CDR policy space is emergent, and political actors are just beginning to position themselves. Building on the author’s previous work which established a typology of CDR policy integration patterns and developed a discourse analytical framework for mapping CDR-policy-relevant speaker positions, the authors present the first fine-grained empirical reconstruction of CDR-policy-relevant actors and their positions in the German context.