Greta Shum

Greta Shum holds a Post-doctoral scholarship in the Department of Water and Climate at Vrije Universiteit Brussel. Her research focuses on extreme climate systems, astrobiology, and biogeophysical processes. She completed her PhD in Atmospheric & Climate Sciences (University of Washington, 2024) with a focus on habitability in extreme climates, alongside an Astrobiology Graduate Certificate. Earlier, she earned a Master's in Atmospheric Sciences (2021) modeling mid-Holocene forest expansion.

Research Interests:

• Climate modeling of Snowball Earth scenarios
• Land-atmosphere feedback mechanisms in paleoclimates
• Biogeochemical processes enabling early Earth habitability

Key Contributions: Published on Snowball Earth photosynthetic viability (2024) and Holocene forest expansion drivers (2023). Contributed to climate datasets analyzing SPARCCLE scenarios (Zenodo, 2025).

Labs/Teams: Collaborates with interdisciplinary climate teams at Vrije Universiteit Brussel and University of Washington.