Evaluating climate geoengineering proposals in the context of the Paris Agreement temperature goals

Mark G. Lawrence (), Stefan Schäfer, Helene Muri, Vivian Scott, Andreas Oschlies, Naomi E. Vaughan, Olivier Boucher, Hauke Schmidt, Jim Haywood and Jürgen Scheffran
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Mark G. Lawrence: Institute for Advanced Sustainability Studies (IASS)
Stefan Schäfer: Institute for Advanced Sustainability Studies (IASS)
Helene Muri: University of Oslo
Vivian Scott: University of Edinburgh
Andreas Oschlies: GEOMAR
Naomi E. Vaughan: University of East Anglia
Olivier Boucher: CNRS / Sorbonne Université
Hauke Schmidt: Max Planck Institute for Meteorology
Jim Haywood: University of Exeter
Jürgen Scheffran: University of Hamburg

Nature Communications, 2018, vol. 9, issue 1, 1-19

Abstract: Abstract Current mitigation efforts and existing future commitments are inadequate to accomplish the Paris Agreement temperature goals. In light of this, research and debate are intensifying on the possibilities of additionally employing proposed climate geoengineering technologies, either through atmospheric carbon dioxide removal or farther-reaching interventions altering the Earth’s radiative energy budget. Although research indicates that several techniques may eventually have the physical potential to contribute to limiting climate change, all are in early stages of development, involve substantial uncertainties and risks, and raise ethical and governance dilemmas. Based on present knowledge, climate geoengineering techniques cannot be relied on to significantly contribute to meeting the Paris Agreement temperature goals.

Date: 2018
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DOI: 10.1038/s41467-018-05938-3

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