CO₂-removal News

Sustainable Carbon Cycles Conference

Organised by the European Commission on 31 January 2022

The one-day conference brings together decision makers and experts from different backgrounds to share their experiences in view of the upcoming EU regulatory initiative on the certification of carbon removals.


Ortiz et al. (2022): Artificial Upwelling in Singular and Recurring Mode: Consequences for Net Community Production and Metabolic Balance

Joaquin Ortiz, Javier Arístegui, Jan Taucher, Ulf Riebesell IN: Frontiers in Marine Science 8, 2022, DOI: 10.3389/fmars.2021.743105

Artificial upwelling of nutrient-rich waters and the corresponding boost in primary productivity harbor the potential to enhance marine fishery yields and strengthen the biological pump for sequestration of atmospheric CO2. The authors conducted a large-scale off-shore mesocosm study (∼44 m3) in the oligotrophic waters of the Canary Islands to identify the community-level effects of artificial upwelling on a natural oligotrophic plankton community. Results on the response of net community production (NCP), metabolic balance and phytoplankton community composition (<250 μm) were presented.


Numerical Flow Modeling of Artificial Ocean Upwelling

Jost Kemper, Ulf Riebesell, Kai Graf IN: Frontiers in Marine Science 8, 2022; DOI: 10.3389/fmars.2021.804875

Artificial Upwelling (AU) of nutrient-rich Deep Ocean Water (DOW) to the ocean’s sunlit surface layer has recently been put forward as a means of increasing marine CO2 sequestration and fish production. The studies presented in this paper concentrate on the direct effects of the AU process on nutrient spread and concentration in the ocean’s mixed surface layer.


C2G Webinar: How does the Working Group-I report of the IPCC Sixth Assessment address Carbon Dioxide Removal and Solar Radiation Modification?

January, 20, 2022 03:30 PM (UTC)

This C2GLearn webinar aims to provide audiences with expert overviews of how the IPCC AR6 Working Group-I report addresses CDR and SRM, followed by a moderated Q&A session enabling the audience to ask clarifying questions and learn more. Speakers’ presentations will be pre-recorded and played to the webinar audience, with the speakers joining for the live Q&A session. Once this event reaches full capacity and you are unable to register please use this link to watch the YouTube livestream on the day.


Tunc et al. (2022): Direct air capture system: a feasibility study for Izmir

K.M. Murat Tunc, Levon Cagla, Mustafa Kasikci, Rafet Yagiz Caliskan, Zeynep Korkmaz IN: International Journal of Sustainable Energy, DOI: 10.1080/14786451.2021.2024831

This study aims to reduce 1% of the annual emissions in the city of Izmir. In line with this target, this study worked on the integration of a liquid solvent-based DACS system. Primarily, the emissions within the city boundaries were calculated based on the calculation method of each sector.


ICRLP 1st Annual Conference: Welcome and roundtable: Domestic Legal Frameworks for Ocean CDR

by Institute for Carbon Removal Law and Policy on Youtube (1h:48min)

The presented panel will feature legal academics from the U.S. and Europe to discuss how existing domestic laws in their countries could apply to the testing and deployment of different ocean CDR techniques (including ocean fertilization, ocean alkalinity enhancement, artificial upwelling and downwelling, and seaweed cultivation). Key gaps and shortcomings in existing laws are identified and possible reforms explored.


The potential of alkaline mineral materials for CO2 removal from the atmosphere

by Mineralogical Society on Youtube (59 min)

Alkaline materials are produced in numerous industries (cement, by-product slag from steel manufacturing, and red mud from aluminium production). This presentation will discuss new modeling results that suggest the potential of alkaline materials to sequester carbon dioxide could be several GtCO2 per year by 2100 as demand for materials increases to meet the needs of a growing and developing world population.