Monat: Oktober 2023

Study shows support for carbon removal but great concern over solar manipulation

by Ulrich von Lampe, Mercator Research Institute on Global Commons and Climate Change (MCC),, October 30

„According to forecasts, even the strategy to gradually reduce climate gas emissions to zero everywhere will no longer be enough to limit global heating to well below 2°C. Today, the discussion is also about „negative emissions,“ i.e., the removal of the most important greenhouse gas, CO2, from the atmosphere. Under the heading of „solar radiation management,“ some are even talking about a potential reflection of incoming sunlight. A new study led by the Berlin-based climate research institute MCC (Mercator Research Institute on Global Commons and Climate Change) now sheds light on the acceptance of such options.“


The innovators trying to bring down the sky-high cost of direct air capture

by Mike Scott,, October 24, 2023


  • Key divide in DAC is between processes that use high and low temperatures to capture CO2
  • Low-temperature solid sorbent systems can use solar, wind, geothermal and waste nuclear power heat, but high-temperature liquid solvent systems rely on natural gas and are less expensive
  • All are innovating to cut energy use.
  • Alternative technologies being used to capture the CO2 include membrane separation using zeolites and electro-swing absorption.“


Negative carbon concrete for achieving next generation of sustainable and durable modular integrated construction (MIC): A review

Xinlin Ji, Lijie Chen, Ying Zhong, Yi Zhang, Jiayi Li, Wei Pan, Ray Kai-Leung Su, Creative Construction Conference 2023, DOI: 10.3311/CCC2023-071

Modular integrated construction (MiC) is set to become a prominent solution to achieving the “carbon neutrality” initiative in Hong Kong, offering high productive efficiency. The concept of “low carbon construction” is proposed by the use of low carbon construction materials and the optimization of project management. However, there remains great potential in the use of these methods in reducing carbon footprint during the design and construction process. This paper firstly reviews possible pathways to reducing the embodied carbon of reinforced concrete. A novel concept known as “negative carbon concrete”, which is potentially achieved by combining CO2 mineralization – the natural carbonation of concrete with other low-carbon construction materials – is proposed.


How Iceland’s Carbfix is harnessing the power of turning CO2 into stone

by Terry Slavin,, October 30, 10:59 AM


  • Carbfix permanently sequesters CO2 by mixing it with water and injecting into basalt rock
  • Technology speeds up a natural process that normally takes thousands of years into two
  • Carbfix storing CO2 from Climeworks‘ direct air capture plant, but CO2 storage from hard to abate sector much bigger market
  • Coda Terminal project aims to mineralise 3 million tons of CO2 captured from European industry
  • CO2SeaStone project testing process with seawater to expand technology’s application“


CCUS Forum WG on public perception of CCUS – Working Group Paper

Elisabeth Duetschke,

This paper is an outcome of the Working Group (WG) on public perception of CCUS, set up by DG ENER in 2023, as a follow-up to the 2022 CCUS Forum and anticipating the development of the EU’s strategy, currently announced as the Industrial Carbon Management Strategy.

The aim of this WG is to support the European Commission by studying and communicating how public perception of and engagement with CCUS emerge, and what role they play in delivering CCUS in the EU. The main objective of this WG is to contribute to the upcoming Commission’s Communication on the Strategy, expected by the end of 2023, by providing the Commission with recommendations on accounting for public perception of CCUS in the Strategy.

This paper aims to present the main concepts and the state of knowledge on public perception of CO2 capture, utilisation and storage (CCUS) and technology-based carbon dioxide removals (CDRs) in the EU, by building up on discussions hold during the Working Group meetings and on existing literature.


Nature – van der Woude et al. (2023): Temperature extremes of 2022 reduced carbon uptake by forests in Europe

Auke M. van der Woude, Wouter Peters, Emilie Joetzjer, Sébastien Lafont, Gerbrand Koren, Philippe Ciais, Michel Ramonet, Yidi Xu, Ana Bastos, Santiago Botía, Stephen Sitch, Remco de Kok, Tobias Kneuer, Dagmar Kubistin, Adrien Jacotot, Benjamin Loubet, Pedro-Henrique Herig-Coimbra, Denis Loustau & Ingrid T. Luijkx IN: Nat Commun 14, 6218 (2023).

The year 2022 saw record breaking temperatures in Europe during both summer and fall. Similar to the recent 2018 drought, close to 30% (3.0 million km2) of the European continent was under severe summer drought. In 2022, the drought was located in central and southeastern Europe, contrasting the Northern-centered 2018 drought. The authors show, using multiple sets of observations, a reduction of net biospheric carbon uptake in summer (56-62 TgC) over the drought area.