Joint optimization of land carbon uptake and albedo can help achieve moderate instantaneous and long-term cooling effects

0576666 - ÚVGZ 2024 RIV GB eng J - Článek v odborném periodiku
Graf, A. - Wohlfahrt, G. - Aranda-Barranco, S. - Arriga, N. - Bruemmer, C. - Ceschia, E. - Ciais, P. - Desai, A. R. - Di Lonardo, S. - Gharun, M. - Gruenwald, T. - Hoertnagl, L. - Kasak, K. - Klosterhalfen, A. - Knohl, A. - Kowalska, Natalia - Leuchner, M. - Lindroth, A. - Mauder, M. - Migliavacca, M. - Morel, A. - Pfennig, A. - Poorter, H. - Teran, C. P. - Reitz, O. - Rebmann, C. - Sanchez-Azofeifa, A. - Schmidt, M. - Šigut, Ladislav - Tomelleri, E. - Yu, K. - Varlagin, A. - Vereecken, H.
Joint optimization of land carbon uptake and albedo can help achieve moderate instantaneous and long-term cooling effects.
Communications Earth & Enviroment. Roč. 4, č. 1 (2023), č. článku 298. E-ISSN 2662-4435
Grant CEP: GA MŠMT(CZ) EF16_019/0000797
Výzkumná infrastruktura: CzeCOS IV - 90248
Institucionální podpora: RVO:86652079
Klíčová slova: carbon cycle * climate-change mitigation
Obor OECD: Meteorology and atmospheric sciences
Impakt faktor: 7.9, rok: 2022
Způsob publikování: Open access
https://www.nature.com/articles/s43247-023-00958-4

Both carbon dioxide uptake and albedo of the land surface affect global climate. However, climate change mitigation by increasing carbon uptake can cause a warming trade-off by decreasing albedo, with most research focusing on afforestation and its interaction with snow. Here, we present carbon uptake and albedo observations from 176 globally distributed flux stations. We demonstrate a gradual decline in maximum achievable annual albedo as carbon uptake increases, even within subgroups of non-forest and snow-free ecosystems. Based on a paired-site permutation approach, we quantify the likely impact of land use on carbon uptake and albedo. Shifting to the maximum attainable carbon uptake at each site would likely cause moderate net global warming for the first approximately 20 years, followed by a strong cooling effect. A balanced policy co-optimizing carbon uptake and albedo is possible that avoids warming on any timescale, but results in a weaker long-term cooling effect.
Trvalý link: https://hdl.handle.net/11104/0346235