Richardson, K., Steffen, W., Lucht, W., Bendtsen, J., Cornell, S. E., Donges, J. F., Drüke, M., Fetzer, I., Bala, G., von Bloh, W., Feulner, G., Fiedler, S. , Gerten, D., Gleeson, T., Hofmann, M., Huiskamp, W., Kummu, M., Mohan, C., Nogués-Bravo, D., Petri, S., Porkka, M., Rahmstorf, S., Schaphoff, S., Thonicke, K., Tobian, A., Virkki, V., Wang-Erlandsson, L., Weber, L. and Rockström, J.  (2023) Earth beyond six of nine planetary boundaries. Sci. Adv., 9 (37), https://doi.org/10.1126/sciadv.adh2458

Summary from https://www.stockholmresilience.org: "The planetary boundaries concept presents a set of nine planetary boundaries within which humanity can continue to develop and thrive for generations to come. In September 2023, a team of scientists quantified, for the first time, all nine processes that regulate the stability and resilience of the Earth system." [more...]

Latif, M., Bayr, T., Kjellsson, J.  Lübbecke, J.F., Martin, T., Nnamchi, H.C.,  Park, W.,  Savita, A., Sun, J. and  Dommenget, D.: Strengthening atmospheric circulation and trade winds slowed tropical Pacific surface warming. Commun Earth Environ 4, 249 (2023). https://doi.org/10.1038/s43247-023-00912-4

Summary: "The globally averaged sea-surface temperature (SST) has steadily increased in the last four decades, consistent with the rising atmospheric greenhouse gas concentrations. Parts of the
tropical Pacific exhibited less warming than the global average or even cooling, which is not
captured by state-of-the-art climate models and the reasons are poorly understood. Here we
show that the last four decades featured a strengthening atmospheric circulation and
stronger trade winds over the tropical Pacific, which counteracted externally-forced SST
warming. Climate models do not simulate the trends in the atmospheric circulation irrespective of whether an external forcing is applied or not and model bias is the likely reason."

Summary: "Low-level jets (LLJs) typically occur at night due to strong surface cooling. This study provides the first observational evidence that LLJs can also be driven by convectively generated cold pools (CPs), areas of cool and dense air beneath precipitating clouds. CPs can favor temperature inversions with reduced friction of the winds with the surface, as a prerequisite for generating LLJs also during daytime."

Summary: "The pan-Atlantic decadal oscillation exerts far-reaching impacts on regional and global climate fluctuations. This study uncovers a pattern of ocean circulation across the entire Atlantic basin that underlies the surface climate oscillation."