Mac Dowell, Niall; Fajardy, Mathilde; Daggash, Habiba; Patrizio, Piera (2019): Negative Emissions: Priorities for Research and Policy Design. In: Front. Clim. 1, S. 6. DOI: 10.3389/fclim.2019.00006.

"Five CDR technologies – including afforestation/reforestation, bioenergy with carbon capture and Storage, biochar, direct air capture and enhanced weathering – are compared in this work. We discuss main technical, socio-economic and regulatory bottlenecks that have been scarcely investigated at regional level, and provide directions for further research. We identify the availability of accessible land, water, low carbon energy and CO2 storage as key regional drivers and bottlenecks to most CDR technologies. We discuss the caveats in CO2 accounting in assessing the performance of each technology, and the need for an international regulatory framework which captures these differences."

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Tan, Raymond R.; Aviso, Kathleen B. (2019): A linear program for optimizing enhanced weathering networks. In Results in Engineering 3, p. 100028. DOI: 10.1016/j.rineng.2019.100028.

"The model proposed here can determine optimal matches of sources and sinks in EW-based CMNs, considering material flow and temporal constraints. A case study is solved to illustrate the model."

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Tan, Raymond R.; Aviso, Kathleen B.; Foo, Dominic C.Y.; Lee, Jui-Yuan; Ubando, Aristotle T. (2019): Optimal synthesis of negative emissions polygeneration systems with desalination. In: Energy, S. 115953. DOI: 10.1016/j.energy.2019.115953.

"In this paper, a novel scheme that integrates the ROD/IOC process with combined cooling, heating, and power (CCHP) generation is proposed as a new negative emissions polygeneration system (NEPS). A mixed integer linear programming model is then developed for the optimal synthesis and operation of such a system. The model uses a multi-period formulation to account for hourly variations in product demand and electricity price."

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Colvin, R.; Kemp, L.; Talberg, A.; Castella, C. de; Downie, C.; Friel, S. et al. (2019): Learning from the Climate Change Debate to Avoid Polarisation on Negative Emissions. In: Environmental Communication 28, S. 1–13. DOI: 10.1080/17524032.2019.1630463.

"This paper identifies critical lessons from the climate change experience to guide how communications and engagement on negative emissions can be conducted to encourage functional public and policy discourse. Negative emissions technologies present a significant opportunity for limiting climate change, and are likely to be necessary to keep warming below 2°C."

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