People

Dr. Hannah M. Horowitz

Dr. Hannah M. Horowitz
Assistant Professor
Civil and Environmental Engineering
Affiliate Assistant Professor
Climate, Meteorology and Atmospheric Sciences
CV (updated July 2026)

Current Students

Graduate Students

Summer Acker

Summer Acker
PhD Student
Climate, Meteorology and Atmospheric Sciences

Mashiat Hossain

Mashiat Hossain
PhD Student
Environmental Engineering and Science
Civil and Environmental Engineering

Undergraduate Researchers

Andy Luo
Chemistry

Avanti Singh
Aerospace Engineering

Calla Shanbaum
Environmental Engineering

Group Photos

Horowitz group at the ACS Fall Meeting, August 2026
August 2026 – Horowitz group at ACS
Horowitz group at the International GEOS-Chem Meeting, June 2026
June 2026 – Horowitz group at the International GEOS-Chem Meeting
May 2026 Celebrating Erin and Tessas graduation at Hannahs house
May 2026 – Celebrating Erin and Tessa’s graduation at Hannah’s house
Erin and Tessa at their doctoral hooding ceremony
May 2026 – Erin and Tessa’s Doctoral Hooding ceremony!
After Erins successful PhD defense!
February 2026 – After Erin’s successful PhD defense!
June 2026 Celebrating Hannahs baby #2
June 2025 – Celebrating Hannah’s baby #2
December 2024 Horowitz group at AGU (missing Mashiat!)
December 2024 – Horowitz group at AGU (missing Mashiat!)
June 2024 Horowitz group at the International GEOS-Chem Meeting
June 2024 – Horowitz group at the International GEOS-Chem Meeting
December 2022 A very chilly group gathering at Riggs Christmas Market
December 2022 – A very chilly group gathering at Riggs Christmas Market
November 2021 Group gathering at Hannahs house
November 2021 – Group gathering at Hannah’s house
September 2021 First in-person whole-group meeting COVID era!
September 2021 – First in-person whole-group meeting – COVID era!

Photos advance automatically – hover to pause.

Alumni

PhD Graduates

Dr. Tessa Clarizio

Dr. Tessa Clarizio
PhD, Environmental Engineering, 2026
Currently: Postdoctoral Research Associate, University College Dublin
Click here for Tessa’s science blog!

Dr. Erin Emme

Dr. Erin Emme
PhD, Environmental Engineering, 2026
Currently: Postdoctoral Research Associate, University of Colorado Boulder
Former Undergraduate Researcher, Civil and Environmental Engineering

Dr. Hope Hunter

Dr. Hope Hunter
PhD, Environmental Engineering, 2026
M.S., Environmental Engineering, 2022
Currently: NASA Postdoctoral Program Fellow, NASA Goddard Institute for Space Studies

Former Undergraduate Researchers

Yuna Kim, B.S., Environmental Engineering, 2026
Cadyn Grafton, B.S., Environmental Engineering, 2025
Xinyu (Cici) Teng, B.S., Civil and Environmental Engineering, 2022
Erin Emme, B.S., Civil and Environmental Engineering, 2021