Gregg joined the Pacific Institute in 2020. His work focuses on developing and scaling awareness and investment of nature-based solutions (NBS) by the private sector. This work includes the development and implementation of a standardized methodology to demonstrate stacked water and carbon co-benefits and maps wider co-benefits associated with NBS for watersheds around the world.

Gregg has 15 years of experience in corporate sustainability, environmental conservation, economic water resilience, and stakeholder engagement. He has worked for NGOs, the public and private sectors, and in academia.

Gregg received a B.Sc. in Environmental Science from Rhodes University, a Master’s degree in Geography and Environmental Science from Stellenbosch University, and a PhD in Environmental and Geographical Science from the University of Cape Town. His PhD research focused on how communities use, value, impact, and govern water-related ecosystem services in urban protected areas.