Fig. 2
From: Recent summer warming in northwestern Canada exceeds the Holocene thermal maximum
Holocene pore ice record. a–c Comparison of raw δD, δ18O and dexcess pore ice series (black lines) from the upper vs. lower cores, and ‘adjusted’ δD, δ18O and dexcess series (grey lines), which are each corrected by half of the mean offsets in δD and δ18O between the upper and lower cores during the period of overlap; d–f Composite pore ice δD, δ18O and dexcess (grey lines), and δseawater-corrected pore ice records (blue lines)
