Research for assessment, not deployment of Climate Engineering: The German Research Foundation's Priority Program SPP 1689.

Oschlies, Andreas and Klepper, Gernot (2017) Research for assessment, not deployment of Climate Engineering: The German Research Foundation's Priority Program SPP 1689. Open Access Earth's Future, 5 (1). pp. 128-134. DOI 10.1002/2016EF000446.

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Abstract

The historical developments are reviewed that have led from a bottom-up responsibility initiative of concerned scientists to the emergence of a nationwide interdisciplinary Priority Program on the assessment of Climate Engineering (CE), funded by the German Research Foundation (DFG). Given the perceived lack of comprehensive and comparative appraisals of different CE methods, the Priority Program was designed to encompass both solar radiation management (SRM) and carbon dioxide removal (CDR) ideas, and to cover the atmospheric, terrestrial and oceanic realm. First key findings obtained by the ongoing Priority Program are summarized and reveal that compared to earlier assessments, such as the 2009 Royal Society report, more detailed investigations tend to indicate less efficiency, lower effectiveness and often lower safety. Emerging research trends are discussed in the context of the recent Paris agreement to limit global warming to less than two degrees and the associated increasing reliance on negative emission technologies. Our results show then when deployed at scales large enough to have a significant impact on atmospheric CO2, even CDR methods such as afforestation – often perceived as ‘benign’ – can have substantial side effects and may raise severe ethical, legal and governance issues. We suppose that before being deployed at climatically relevant scales, any negative-emission or climate engineering method will require careful analysis of efficiency, effectiveness and undesired side effects.

Document Type: Article
Keywords: climate engineering; assessment; solar radiation management; negative emission technologies
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BM Biogeochemical Modeling
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1002/2016EF000446
ISSN: 2328-4277
Projects: SPP 1689, Future Ocean
Date Deposited: 16 Jan 2017 08:33
Last Modified: 24 May 2019 11:29
URI: http://oceanrep.geomar.de/id/eprint/35666

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