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The 8.2 ka event has been extensively studied, whereas its structure is ambiguous in North China. Here we present a high‐resolution (∼1 year) δ18O record from annual laminated speleothem from Beijing to characterize the detailed variability across this event in North China. Our record indicates a dry 8.2 ka event spanning 8.254–8.107 ka BP with a two‐stage structure superimposed by three prominent high δ18O excursions. The identical structure of speleothem δ18O records between North and central China during the event suggests a common forcing/response in East China, whereas the progressively increased offset between their average values may reflect changes in moisture source or rainout effect. A close comparison with the Greenland ice core records suggests a strong linear response of the Asian summer monsoon to the North Atlantic climate changes across the early and middle stages of the event, but a different mechanism in the termination processes. Plain Language Summary: As the most pronounced abrupt climate event in the Holocene, the 8.2 ka event has been studied using various geological archives worldwide, but its detailed structure in North China and its link to other climate systems remain poorly understood. Since the Beijing speleothem δ18O, a proxy of the precipitation δ18O, is sensitive to the Asian summer monsoon (ASM) variations, it allows us to establish precise timing and structure of the 8.2 ka event and estimate the cause of it. Our new speleothem δ18O record from Beijing reveals a two‐stage structure superimposed by three "V‐shape" excursions during the event and almost exactly covaries with another published speleothem record from central China, suggesting coherent climate changes over the east ASM domain in response to the same forcing. The gradually increased offset between them probably results from the changed atmospheric circulations. Our results suggest a fast climatic signal propagation from the North Atlantic to the ASM domain during the early and middle 8.2 ka event, and another forcing mechanism in the termination processes. Key Points: Annual laminated speleothem δ18O record from North China manifests a two‐stage 8.2 ka event superimposed by three positive excursionsHigh consistency in speleothem records from North and central China on interdecadal to multidecadal timescales indicates a common driverThe climate forcing for the termination process is different from the early and middle stages of the 8.2 ka event [ABSTRACT FROM AUTHOR]

A full‐spectrum characterization of past interglacial climate is a necessary prerequisite for the detection and attribution of climate changes during the current interglacial. Here we present a speleothem record of Asian summer monsoon (ASM) during Marine Isotope Stage (MIS) 11 interglacial (MIS 11c), from Yongxing cave, China. The record's unprecedented chronologic constraints and decadal‐scale temporal resolution allow a precise and direct comparison of ASM between the MIS 11c and the Holocene. Our data suggest that orbital‐centennial patterns of ASM were remarkably similar during both interglacial, including their pacing and structure. Notably, a multi‐millennial stronger monsoon late in MIS 11c, the "Late‐MIS 11c shift," is similar to the Late Holocene strengthening of the ASM, the "2‐Kyr shift." Thus, the multicentennial ASM weakening at the end of the Late‐MIS 11c shift could imply that the current century‐long ASM waning trend may persist into the future, if only natural forcings are considered. Plain Language Summary: The interglacial of Marine Isotope Stage 11 (MIS 11c) is generally considered to be an appropriate natural climate analog to the current interglacial, the Holocene. A new speleothem oxygen‐isotope (δ18O) record is reconstructed to characterize Asian summer monsoon (ASM) variability across MIS 11c on a wide range of timescales. This new record has an unprecedented high resolution (~11 years) and precise chronology constrained by 230Th dating and annual band counting. It thus allows for the first time a precise comparison of ASM variability between MIS 11c and the Holocene. We find that the observed pattern of decreasing ASM strength during the late portion of MIS 11c was interrupted by a multi‐millennial period of stronger monsoon (the "Late‐MIS 11c shift"), which is similar to the Late Holocene increase in ASM strength (the "2‐Kyr shift"), which also occurred against a backdrop of long‐term decline in Northern Hemisphere summer insolation. Notably, the Late‐MIS 11c shift was terminated by a multicentennial ASM weakening trend, thus suggesting that the current century‐long ASM waning trend could persist into the future, provided that the anthropogenic forcing does not supersede the natural variability. Key Points: A new high‐resolution record of the Asian summer monsoon is reconstructed over Marine Isotope Stage 11 as a natural analog to the HoloceneThe Marine Isotope Stage 11 record with a chronology constrained by annual band counting shows climate variability similar to the HoloceneThe projection of the Marine Isotope Stage 11‐Holocene comparison into the future suggests a weakening trend for the Asian summer monsoon [ABSTRACT FROM AUTHOR]