AUTHOR=Brandão Miguel, Lamers Patrick, Olfe-Kraeutlein Barbara, Rickels Wilfried, Sick Volker, Van Der Spek Mijndert, Yang Aidong TITLE=Editorial: Developing and Deploying Negative Emission Technologies: System-Level Assessment and Rationalization JOURNAL=Frontiers in Climate VOLUME=3 YEAR=2021 URL=https://www.frontiersin.org/articles/10.3389/fclim.2021.707872 DOI=10.3389/fclim.2021.707872 ISSN=2624-9553