AbstractCosmogenic radionuclides (e.g., ¹⁰Be) from ice cores are a powerful tool for solar reconstructions back in time. However, superimposed on the solar signal, other factors like weather/climate and volcanic influences on ¹⁰Be can complicate the interpretation of ¹⁰Be data. A comprehensive study of ¹⁰Be records over the recent period, when atmospheric ¹⁰Be production and meteorological conditions are relatively well‐known, can improve our interpretation of ¹⁰Be records. Here we conduct a systematic study of the production and climate/volcanic signals in Antarctica and Greenland ¹⁰Be records, including a new ¹⁰Be record from the East GReenland Ice‐core Project site. Greenland and Antarctica records show significant decreasing trends (5%–6.5%/decade) for 1900–1950, which is comparable with the expected production rate inferred from sunspot observations. By comparing ¹⁰Be records with reanalysis data and atmospheric circulation patterns, ¹⁰Be records from Southern/Southeastern Greenland are significantly correlated with the Scandinavia pattern. Stacking ¹⁰Be records from different locations can enhance the production signal. However, this approach is not always straightforward as uncertainties in some records can lead to a weaker solar signal. A strategy can be employed to select records for the bipolar stack by comparing Greenland records with Antarctica records, assuming the shared signal is a production signal. Finally, we observe significant increases (36%–64%) in ¹⁰Be depositions in Greenland related to the Agung eruption. This large increase in Greenland ¹⁰Be records after the Agung eruption, could be partly explained by the enhanced air mass transport from mid‐latitudes coinciding with the decreased precipitation en‐route.