Monat: August 2021

Peer-reviewed Publications

Zhang, Yan; et al. (2021): Data from: How large is the design space for stratospheric aerosol geoengineering?

Zhang, Yan; MacMartin, Douglas G.; Visioni, Daniele; Kravitz, Ben (2021): Data from: How large is the design space for stratospheric aerosol geoengineering?

„Data in support of research: Stratospheric aerosol injection (SAI), as a possible supplement to emission reduction, has the potential to reduce some of the risks associated with climate change. Adding aerosols to the lower stratosphere results in global cooling. However, different choices for the aerosol injection latitude(s) and season(s) have been shown to lead to significant differences in regional surface climate, introducing a design aspect to SAI. Past research has shown that there are at least three independent degrees of freedom (DOF) that can be used to simultaneously manage three different climate goals. Knowing how many more DOFs there are, and thus how many independent climate goals can be simultaneously managed, is essential to understanding fundamental limits of how well SAI might compensate for anthropogenic climate change, and evaluating any underlying trade-offs between different climate goals. Here we quantify the number of meaningfully-independent DOFs of the SAI design space.“

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Peer-reviewed Publications

Lezaun, Javier (2021): Hugging the Shore: Tackling Marine Carbon Dioxide Removal as a Local Governance Problem

Lezaun, Javier (2021): Hugging the Shore: Tackling Marine Carbon Dioxide Removal as a Local Governance Problem. In Front. Clim. 3, p. 38. DOI: 10.3389/fclim.2021.684063.

„This Perspective explores the local governance of ocean-based carbon dioxide removal (CDR). Proposals to enhance the ability of oceans and marine ecosystems to absorb atmospheric CO2 are often discussed as examples of “geoengineering,” but this framing obscures the site-specific nature of most of the suggested interventions. The Perspective outlines some of the key local dimensions of marine CDR as currently imagined, and suggests a framework for increasing local participation in its assessment.“

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Science-Policy Documents

C2G (2021): Direct Air Carbon Dioxide Capture & Storage (DACCS). Policy Brief

C2G (2021): Direct Air Carbon Dioxide Capture [&] Storage (DACCS). Policy Brief. C2G. Available online at https://www.c2g2.net/wp-content/uploads/DACCS-Policy-Brief.pdf.

„Carbon Dioxide Removal (CDR), also known as negative emissions, aims to address the primary driver of climate change by removing carbon dioxide (CO2 ) from the atmosphere and ensuring its long-term storage. Direct Air Carbon Dioxide Capture and Storage (DACCS) is an approach to CDR which may have the potential to contribute to slowing the rate of global warming and help prevent ocean acidification. DACCS should not be confused with Carbon Capture and Storage (CCS). DACCS captures CO2 directly from ambient air and subsequently stores it. CCS stops additional new CO2 from entering the atmosphere at its point of source.“

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Peer-reviewed Publications

Gernon, Thomas M.; et al. (2021): Global chemical weathering dominated by continental arcs since the mid-Palaeozoic

Gernon, Thomas M.; Hincks, Thea K.; Merdith, Andrew S.; Rohling, Eelco J.; Palmer, Martin R.; Foster, Gavin L. et al. (2021): Global chemical weathering dominated by continental arcs since the mid-Palaeozoic. In: Nat. Geosci. 28, S. 611. DOI: 10.1038/s41561-021-00806-0.

„Earth’s plate-tectonic activity regulates the carbon cycle and, hence, climate, via volcanic outgassing and silicate-rock weathering. Mountain building, arc–continent collisions and clustering of continents in the tropics have all been invoked as controlling the weathering flux, with arcs also acting as a major contributor of carbon dioxide to the atmosphere. However, these processes have largely been considered in isolation when in reality they are all tightly coupled. To properly account for interactions among these processes, and the inherent multi-million-year time lags at play in the Earth system, we need to characterize their complex interdependencies. Here we analyse these interdependencies over the past 400 million years using a Bayesian network to identify primary relationships, time lags and drivers of the global chemical weathering signal.“

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Calls

Call for Submissions: Department of Energy Seeks Input for a New Clean Energy Manufacturing Institute to Catalyze Industrial Decarbonization

Deadline: 7. September 2021

„The U.S. Department of Energy (DOE) announced a request for information (RFI) to inform the creation of a new Clean Energy Manufacturing Institute focused on industrial decarbonization. Released by DOE’s Office of Energy Efficiency and Renewable Energy, the RFI seeks input from stakeholders in identifying key opportunities to decarbonize energy-intensive sectors across America’s economy through public-private collaboration. The RFI requests input on two topic areas of interest, electrification of industrial processes and decarbonizing the metals industry. Stakeholder input will help provide focus for the potential new Institute to contribute technological advances for widespread industrial decarbonization.“

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Peer-reviewed Publications

Marchegiani, Davide; Dommenget, Dietmar (2021): Counteracting global warming by using a locally optimized solar radiation management

Marchegiani, Davide; Dommenget, Dietmar (2021): Counteracting global warming by using a locally optimized solar radiation management. In Earth and Space Science. DOI: 10.1002/essoar.10507751.1.

„Here, using the Globally Resolved Energy Balance (GREB) model, we present experiments designed to completely offset global and regional surface temperature response due to CO2 forcing.“

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