Scientists have been monitoring the Atlantic Meridional Overturning Circulation (AMOC) at around 26.5°N since April 2004 through the RAPID/Meridional Overturning Circulation and Heatflux Array/Western Boundary Time Series moored array (RAPID). The newly released RAPID dataset fully incorporated a recent geomagnetic correction of the submarine cable measurement of the Florida Current transport, a critical component of the AMOC (Volkov et al., 2024). According to the new dataset, the annual mean AMOC decreased to 15.2 Sv in 2022 from its values in 2021 (15.9 Sv) and 2020 (17.6 Sv). This is the 2nd lowest annual mean AMOC value after 2009 since the continuous monitoring began in 2004. It is well recognized that the biggest drop in the AMOC during 2009-10 (14.9 Sv in 2009; 15.3 Sv in 2010) was caused by a historical drop in the North Atlantic Oscillation (NAO) in the winter of 2009-10 and the associated reduction in deep water formation in the high-latitude North Atlantic. However, according to NOAA’s Climate Prediction Center, the NAO during the winter of 2021-22 remained more or less neutral to positive (0.29 in Dec/2021, 1.08 in Jan/2022, and 1.68 in February 2022; the unit is the standard deviation). So, it is not immediately clear what caused the large drop in the AMOC in 2021-22. It is possible that the anthropogenic AMOC weakening or a delayed effect of the 2009-10 negative NAO is finally catching up.
Figure from https://rapid.ac.uk/data: Transport time series obtained from the first 18.8 years of observations at 26.5°N. The different curves show the MOC (red line) and its constituents, i.e. the transport through the Florida Straits (blue line), the Ekman transport (green line), and the density-driven transport obtained from the mooring data (pink line). The transport units are Sverdrups (Sv, 1Sv = 106 m3 s-1). The mean and standard deviations for the different transports are 17.1 ± 4.64v (MOC), 31.7 ± 2.8Sv (Florida Straits), 3.7 ± 3.4Sv (Ekman), and -18.3 ± 3.4Sv (transport from mooring densities).
Volkov, D.L., Smith, R.H., Garcia, R.F. Smeed, D.A., Moat, B.I, Johns, W.E. & Baringer, M.O. (2024). Florida Current transport observations reveal four decades of steady state. Nature Communications 15, 7780. https://doi.org/10.1038/s41467-024-51879-5
NOAA AOML Western Boundary Time Series (WBTS) project
NOAA AOML Daily Mean Transport Estimates From the Submarine Cable Voltage
Reassessing the stability of the Florida Current: New insights from 40 years of observations
Ocean to Climate 
I had nice communications about the 2022 AMOC weakening with several people through bluesky social. @umsonst.bsky.social brought up Yashayaev (2024). This study reported a shutdown of the Labrador Sea deep convection in 2021 and 2023. The study suggested the former was caused by a reduction in the surface cooling (i.e., anomalous surface heat flux into the ocean) and the latter by extensive freshening originated from extreme Arctic sea-ice melt (i.e., global warming).
Yashayaev, I. Intensification and shutdown of deep convection in the Labrador Sea were caused by changes in atmospheric and freshwater dynamics. Commun. Earth. Environ. 5, 156 (2024). https://doi.org/10.1038/s43247-024-01296-9