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Governing the Sun

The Challenges of Geoengineering

Klaus Radunsky and Tim Cadman

Abstract

Governments have previously sought to reduce climate-change-inducing concentrations of carbon dioxide in the earth's atmosphere through mitigation and adaptation activities, with limited success. New approaches are being explored, such as negative emissions technologies, including carbon dioxide removal, as well as solar geoengineering, also known as solar radiation management, or modification. This article outlines these emerging technologies focusing on bioenergy, carbon capture and storage, and stratospheric aerosol injection, and explores some of the challenges they pose. Prevention of emissions and their reliable, safe, and environmentally benign removal remain the best options. Robust governance systems and a careful, unbiased, and knowledge-driven assessment of the risks of these emerging technologies are required before they are implemented any further.

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From Paris to Poland

A Postmortem of the Climate Change Negotiations

Tim Cadman, Klaus Radunsky, Andrea Simonelli, and Tek Maraseni

This article tracks the intergovernmental negotiations aimed at combatting human-induced greenhouse gas emissions under the United Nations Framework Convention on Climate Change from COP21 and the creation of the Paris Agreement in 2015 to COP24 in Katowice, Poland in 2018. These conferences are explored in detail, focusing on the Paris Rulebook negotiations around how to implement market- and nonmarket-based approaches to mitigating climate change, as set out in Article 6 of the Paris Agreement, and the tensions regarding the inclusion of negotiating text safeguarding human rights. A concluding section comments on the collapse of Article 6 discussions and the implications for climate justice and social quality for the Paris Agreement going forward.