Response to Comment on Preindustrial to Modern Interdecadal Variability in Coral Reef pH

Pelejero, C.; Calvo, E.; McCulloch, M. T.; Marshall, J. F.; Gagan, M. K.; Lough, J. M.; Opdyke, B. N.
Coral reefs are exceptional environments where changes in calcification, photosynthesis, and respiration induce large temporal variations of pH. We argue that boron isotopic variations in corals provide a robust proxy for paleo-pH which, together with the likely concomitant changes in the reconstructed partial pressure of CO2 (PCO2) calculated by Matear and McNeil, fall within ranges that are typical of modern coral reef ecosystems.
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