Dr. Ronald Cohen

Professor

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Biography

Cohen's research combines satellite and in situ laboratory observations of nitrogen oxides aimed at understanding the role of chemical reactions in Earth’s climate, producing unhealthy levels of ozone and fine particles that exchange nitrogen oxides with ecosystems. He studies the chemistry of evaporation and condensation to understand cloud formation and has long-term records of water isotopes recorded in the ice sheets of Greenland and Antarctica. His newest research project involves leading efforts to build analytical instruments and models for observing and interpreting urban greenhouse gas emissions with unprecedented spatial resolution. This project, titled 'Climate Data Action,' received recognition from the Obama administration’s Climate Data Initiative in the summer of 2014.

Research Interests

Experience

Professor

2000-08-01 — Present

University of California, Berkeley • Berkeley, CA

Conducting research in atmospheric and environmental chemistry with a focus on urban greenhouse gas emissions.

Requirements for University of California, Berkeley

Doctorate Program
Requirements
GPA Requirement
Required:3
GRE Subject
Overall Score
Required:500
Overall
Required:500
TOEFL
Total
Required:90
IELTS
Overall
Required:7
Prerequisites
Bachelor's degree or recognized equivalent Preparation comparable to undergraduate major at Berkeley in Mathematics or Applied Mathematics 2 full years lower-division work (Calculus, Linear Algebra, Differential Equations, Multivariable Calculus) 8 one-semester upper-division courses (Real Analysis, Complex Analysis, Abstract Algebra, Linear Algebra)
Application Checklist
  • Graduate Application
  • Statement of Purpose
  • Personal History Statement
  • Three Letters of Recommendation
  • Unofficial Transcripts
  • C.V./Resume
  • Course and Textbook List
Specialization Notes

The Mathematics Subject GRE is required for the Fall 2026 admissions cycle. General GRE is optional.