Dr. William Collins

Professor

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Biography

William Collins is a Professor in the Department of Earth and Planetary Science at the University of California, Berkeley. He serves as the Director of the Climate & Ecosystem Sciences Division at the Lawrence Berkeley National Laboratory. His expertise lies in climate modeling and the analysis of climate change uncertainty and extremes. Collins has contributed to the development of coupled climate models and global climate models, focusing on the interactions between solar and terrestrial radiation. His research is integral to understanding the complex systems that govern climatic conditions and their impact on ecosystems. He has a pivotal role in advancing methodologies that help simulate future climate scenarios, providing critical insights that inform climate policy and sustainable development strategies.

Research Interests

Climate Change Uncertainty Extremes Climate Modeling Coupled Models Climate System Global Climate Models Solar Terrestrial Radiation

Experience

Professor

2001-08-01 — Present

University of California, Berkeley • Berkeley, CA

Teaching and research in the Department of Earth and Planetary Science.

Director

2010-01-01 — Present

Lawrence Berkeley National Laboratory • Berkeley, CA

Overseeing the Climate & Ecosystem Sciences Division.

Courses

EPS 230

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.