Greg Rau, The State of Marine Carbon Removals: Ocean Alkalinity Enhancement, HPAC, May 1, 2025

Dr. Greg Rau is a pioneer in applied carbon cycle research, with over 40 years of experience. He is currently Chief Technology Officer and Co-Founder at Planetary Technologies, where he leads the development and scaling of ocean alkalinity enhancement (OAE) as a climate solution. Dr. Rau is also a Senior Researcher at the Institute of Marine Sciences, University of California, Santa Cruz, and has held research positions at Lawrence Livermore National Laboratory and NASA-Ames. His work focuses on safely accelerating the ocean’s natural ability to absorb and store atmospheric CO₂—a process with the potential to remove gigatons of CO₂ annually (Planetary Technologies, Aspen Global Change Institute).