PhD Environmental Science at University of Arizona

Programme overview

The Ph.D. program in Environmental Science allows you to work closely with distinguished faculty on cutting-edge research that aims to find solutions for today's most pressing environmental issues. Collaborate with industrial and professional partners to identify and apply practical and scientific solutions to current and emerging human-environmental challenges. Engage the community, including underserved populations, through Extension services and citizen science.

Faculty: College of Agriculture, Life & Environmental Sciences | Duration: 6 years / 63 units | Study mode: full-time | Location: Tucson, AZ, United States

What you will study

Major Professor and Required Committees A student’s Major Professor will be the faculty supervisor who has accepted the student into his/her program. The two advisory committees with which the student will interact are the Comprehensive Examination Committee and the Doctoral Dissertation Committee.

Official programme page

Application information

Entry requirements

Graduate College minimum (applies to all programmes; departments may add requirements): regionally accredited bachelor's degree or comparable international degree and a minimum 3.00 GPA for degree programmes on a 4.00 scale. The Graduate College does not require the GRE, though individual programmes may. Programme-specific requirements are listed in the Graduate Admissions Guide.

Domestic applicants: USD 15,500 a year (2026-27). FY 2027 published base tuition for the Resident Graduate rate band, which applies to main-campus graduate programmes. Excludes mandatory fees, college fees, program fees and differential tuition, housing and meal plans. Source

International applicants: USD 35,800 a year (2026-27). FY 2027 published base tuition for the Non-Resident Graduate rate band, which applies to main-campus graduate programmes. Excludes mandatory fees, college fees, program fees and differential tuition, housing and meal plans. Source

Spring semester begins January 13 and fall semester begins August 23 for undergraduate international students; for graduate students spring begins January 14 and fall August 25.

Apply through the official page: https://grad.arizona.edu/admissions

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