Monat: November 2023

Nature – Gidden et al. (2023): Aligning climate scenarios to emissions inventories shifts global benchmarks

Matthew J. Gidden, Thomas Gasser, Giacomo Grassi, Nicklas Forsell, Iris Janssens, William F. Lamb, Jan Minx, Zebedee Nicholls, Jan Steinhauser,Keywan Riahi IN: Nature;

National greenhouse gas inventories (NGHGIs) and scientific assessments of anthropogenic emissions follow different accounting conventions for land-based carbon fluxes resulting in a large difference in the present emission estimates, a gap that will evolve over time. Using state-of-the-art methodologies and a land carbon-cycle emulator, the authors align the Intergovernmental Panel on Climate Change (IPCC)-assessed mitigation pathways with the NGHGIs to make a comparison.


Stephenson & Allwood (2023): Technology to the rescue? Techno-scientific practices in the United Kingdom Net Zero Strategy and their role in locking in high energy decarbonisation pathways

Sam D. Stephenson, Julian M. Allwood IN: Energy Research & Social Science, 106, 103314,

This article reviews the characteristics of fifteen different UK Net Zero pathways (three government pathways and 12 additional pathways) and shows how the expectation of technology innovation and low-carbon energy abundance closes down the space potential pathways can occupy. In particular, the authors find that while conceptually different, the three government pathways display a high degree of similarity and that the majority of pathways rely on significant amounts of new clean energy and retain large residual emissions in 2050 which requires the deployment of significant new carbon dioxide removal technologies.


Carbon to Value Initiative Year 3 Final Showcase

November 30; 5:30 – 8 pm EST

With this event the culmination of the third year of the Carbon to Value (C2V) Initiative will be celebrated! Hear from the 8 Year 3 Cohort startups shaping the future of the carbontech industry as they each present their solutions, the progress they’ve made throughout the past six months of the C2V program, and where they are headed next.


EU Parliament Approves The Carbon Removal Certification Framework And Net Zero Industry Act

by Petya Trendafilova,, November 22, 2023

„The European Parliament voted on November 21st in a plenary session on long-awaited and debated climate policies. The Parliament has approved the Carbon Removal Certification Framework (CRCF) and the Net Zero Industry Act (NZIA), demonstrating its support for scaling up carbon dioxide removal (CDR) capacity in the EU – part of the bloc’s strategy in reaching climate neutrality by 2050.“


EU-Parlament fordert konsequentes Handeln in Dubai

Friederike Meier, (Frankfurter Rundschau), 21.11.2023, 16:43 Uhr

„Abgeordnete verlangen von EU-Vertretern klare Linie für Klimaschutz und Ausstieg aus fossilen Energieträgern.[…] Das EU-Parlament hat Kommission und Mitgliedsstaaten dazu aufgerufen, sich auf der Klimakonferenz in Dubai, die am 30. November beginnt, für ein ehrgeiziges Ergebnis einzusetzen. „Das Parlament ist der Meinung, dass die Union und die Mitgliedstaaten kein Ergebnis akzeptieren sollten, das Technologien zur Verringerung der Emissionen fossiler Brennstoffe im Energiesektor fördert“, heißt es in einer Resolution, die das Parlament am Dienstag verabschiedet hat.“


Ghaleigh et al. (2023): Beyond emissions trading to a negative carbon economy: A proposed Carbon Removal Obligation and its implementation

Navraj Singh Ghaleigh, Johannes Bednar, Justin Macinante, Michael Obersteiner IN: Climate Policy,

A policy framework based on ‘carbon removal obligations’ (CROs) has been proposed by the authors to respond to concerns about the financial and fiscal viability, the lack of incentives for CDR uptake, as well as the physical and technological risks associated with any climate mitigation scenario that relies on large scale CDR. Here the authors propose an updated and improved CRO policy framework, consisting of two core elements: the ‘principal CRO mechanism’ obliges emitters of a tonne of CO2 to remove a tonne of CO2 at the time of maturity of the CRO. On top of this obligation, CRO holders need to pay a fee. This ‘CRO pricing instrument’, introduced in detail here, is used by regulators to steer the carbon emissions and removals pathways. The update suggests that markets for CDR under the CRO framework should operate independently from markets for emission reductions (ERs), such as emission trading schemes.


Song & Oh (2023): Market-pull, technology-push, and regulatory stringency determinants: All in need in firms‘ decisions for large-scale demonstration of direct air capture technologies

Yewon Song, Chaewoon Oh IN: Energy Research & Social Science, 106, 103339,

There is a lack of studies exploring firm-level behaviors in DACCS technologies. What behavioral determinants are responsible for firms undertaking large-scale demonstrations and deployment with innovative but uncertain DACCS technologies? Using an analytical framework that included market pull, technology push, and regulatory stringency determinants, a case study of the firm, Carbon Engineering, was conducted. The results reveal that the most important determinants are regulatory factors that are vital for mobilizing financial resources.


van den Burg et al. (2023): Seaweed as climate mitigation solution: Categorizing and reflecting on four climate mitigation pathways

Sander W. K. van den Burg, Sophie J. I. Koch, Marnix Poelman, Jeroen Veraart, Trond Selnes, Edwin M. Foekema, Romy Lansbergen IN: WIREs Climate Change,

It is necessary to distinguish between, and critically scrutinize, the various pathways seaweed-based climate mitigations can take. This article identifies four different climate mitigation pathways and critically reflects on each. First, carbon sequestration, occurring when grown seaweed is left in the seas or, second, purposefully sunk. Third, carbon emission reduction, resulting when seaweed-based products replace products with a higher carbon footprint, either fossil based products or other organic material. Fourth, carbon emission avoidance, taking place when seaweed products are used to avoid greenhouse gas emissions in other production processes. Each of these pathways requires specific methods to quantify their magnitude and comes with critical questions to ask.