While awareness of the global climate emergency is growing, so too are greenhouse gas emissions and a persistent gap remains between international commitments and the 1.5–2°C goal of the Paris Agreement. Additional climate‐altering approaches are being considered to reduce atmospheric concentrations of carbon dioxide (carbon dioxide removal) or the amount of absorbed solar energy in the climate system (solar radiation modification) but they face multiple uncertainties and knowledge gaps relating to their feasibility, acceptability, sustainability and governance. This special issue presents new insights relating to the governance of climate‐altering approaches together with possible ways to address knowledge and governance gaps in future.
Introduction
Introduction to the Special Issue: ‘Governing Climate‐altering Approaches’ - Janos Pasztor and Nicholas Harrison
Special Issue Articles
Splitting Climate Engineering Governance: How Problem Structure Shapes Institutional Design - Sikina Jinnah, David Morrow and Simon Nicholson
Clash of Geofutures and the Remaking of Planetary Order: Faultlines underlying Conflicts over Geoengineering Governance - Duncan McLaren and Olaf Corry
Carbon‐dioxide Removal and Biodiversity: A Threat Identification Framework - Kate Dooley, Ellycia Harrould‐Kolieb and Anita Talberg
Managing Land‐based CDR: BECCS, Forests and Carbon Sequestration - Duncan Brack and Richard King
Addressing power imbalances in biosequestration governance - Simone Lovera‐Bilderbeek and Souparna Lahiri
Large‐Scale Carbon Dioxide Removal to Meet the 1.5°C Limit: Key Governance Gaps, Challenges and Priority Responses - M.J. Mace, Claire L. Fyson, Michiel Schaeffer and William L. Hare
A Code of Conduct for Responsible Geoengineering Research - Anna‐Maria Hubert
Parametric Insurance for Solar Geoengineering: Insights from the Pacific Catastrophe Risk Assessment and Financing Initiative - Joshua B. Horton, Penehuro Lefale and David Keith
Targeted Geoengineering: Local Interventions with Global Implications - John C. Moore, Ilona Mettiäinen, Michael Wolovick, Liyun Zhao, Rupert Gladstone, Ying Chen, Stefan Kirchner and Timo Koivurova
Solar Radiation Modification ‐ A “Silver Bullet” Climate Policy for Populist and Authoritarian Regimes? - Axel Michaelowa
