edu.ucar.opensky::articles:23695 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-25T06:44:55.916933 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7th8r0w https://doi.org/10.5065/D6JH3JXX https Related Dataset #1 Stratospheric Aerosol Geoengineering Large Ensemble https://doi.org/10.5065/D6WD3XH5 https Related Software #1 NCAR Command Language (NCL) Assessing terrestrial biogeochemical feedbacks in a strategically geoengineered climate 2020-09-30T00:00:00Z publication https://n2t.org/ark:/85065/d7th8r0w https://doi.org/10.1088/1748-9326/abacf7 Yang, C. author Hoffman, F. M. author Ricciuto, D. M. author Tilmes, Simone author Xia, L. author MacMartin, D. G. author Kravitz, B. author Richter, Jadwiga H. author Mills, Michael J. author Fu, J. S. author UCAR/NCAR - Library publisher Geoengineering by injecting sulfur dioxide (SO2) into the lower stratosphere has been suggested to reduce anthropogenically induced warming. While impacts of such geoengineering on climate have been investigated in recent decades, few modeling studies have considered biogeochemical feedbacks resulting from such intervention. This study comprehensively characterizes responses and feedbacks of terrestrial ecosystems, from an ensemble of coupled high-resolution Earth system model climate change simulations, under the highest standard greenhouse gas scenario with an extreme geoengineering mitigation strategy. Under this strategy, temperature increases beyond 2020 levels due to elevated anthropogenic carbon dioxide (CO2) were completely offset by the SO(2)injection. Carbon cycle feedbacks can alter the trajectory of atmospheric CO(2)levels by storing or releasing additional carbon on land and in the ocean, thus moderating or amplifying climate change. We assess terrestrial biogeochemical feedbacks to climate in response to geoengineering, using model output from the Stratospheric Aerosol Geoengineering Large Ensemble (GLENS) project. Results indicate terrestrial ecosystems become a stronger carbon sink globally because of lower ecosystem respiration and diminished disturbance effects under geoengineering. An additional 79 Pg C would be stored on land by the end of the twenty-first century, yielding as much as a 4% reduction in atmospheric CO(2)mole fraction without marine biogeochemical feedbacks, compared to the high greenhouse gas scenario without geoengineering. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation