Clues from the Sea Paint a Picture of Earth’s Water Cycle

The PAGES working group CoralHydro2k was formed in 2017 to investigate the variability of temperature and δ¹⁸O_sw in the surface ocean during the past 2,000 years.

This article examines new instrumentation and growing modeling needs in the Earth sciences are driving a renewed effort to compile and curate seawater oxygen isotope data in a centralized, accessible database.