The corrigendum addresses a clarification regarding the basis for the spectral analysis presented in Figure 4 of the original article. The analysis was based on the past 400,000 years of data, not the full 640,000 years, due to the poorer precision of dates over the period 400,000 to 640,000 years ago. The authors note that the spectral analysis of the full record is less robust. To ensure completeness, they include both the original Figure 4 (covering the past 400,000 years) and analogous graphs for the past 640,000 years in Figure 1 of this corrigendum. They argue that the original analysis is more robust due to smaller dating uncertainties and confirm that their original conclusions remain valid. The corrigendum acknowledges S. C. Clemens for bringing the issue to their attention, and it notes that the original article has not been corrected online.The corrigendum addresses a clarification regarding the basis for the spectral analysis presented in Figure 4 of the original article. The analysis was based on the past 400,000 years of data, not the full 640,000 years, due to the poorer precision of dates over the period 400,000 to 640,000 years ago. The authors note that the spectral analysis of the full record is less robust. To ensure completeness, they include both the original Figure 4 (covering the past 400,000 years) and analogous graphs for the past 640,000 years in Figure 1 of this corrigendum. They argue that the original analysis is more robust due to smaller dating uncertainties and confirm that their original conclusions remain valid. The corrigendum acknowledges S. C. Clemens for bringing the issue to their attention, and it notes that the original article has not been corrected online.