Extended Data Fig. 2: Composite Δ18Oδprecip calculated using Iso2k records15 falling within 30-degree latitudinal bins.
From: Globally coherent water cycle response to temperature change during the past two millennia
a, 60-90°N (n = 76); b, 30-60°N (n = 86); c, 0-30°N (n = 27); d, 0-30°S (n = 39); e, 60-90°S (n = 77). As per Fig. 1, black line with coloured shading shows the 30-year binned proxy δ18O anomaly (black line, ensemble median; dark shading, first and third quantiles; light shading, 2.5th/97.5th percentiles) and gray shading depicts the ensemble 2.5 and 97.5 percentile of the 31-year Butterworth-filtered GMST anomaly relative to the 1961-1990 mean1. Black text denotes mean regression slope (± 1 standard deviation) of regional composite Δ18O vs. GMST from 850-2000. Regional composite for 30-60°S not calculated due to insufficient number of records from those latitudes (n = 2).
