AUTHOR=Berkhout Frans TITLE=Polar geoengineering: not so simple JOURNAL=Frontiers in Science VOLUME=Volume 3 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/science/articles/10.3389/fsci.2025.1675418 DOI=10.3389/fsci.2025.1675418 ISSN=2813-6330