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Earth Sciences and Environmental Sustainability - Ecology, Evolution and Conservation Biology, Ph.D.

  • Application Deadline
  • Unknown
University rank #501 (WUR) Flagstaff, AZ, United States
The Interdisciplinary PhD Program in Earth Sciences and Environmental Sustainability - Ecology, Evolution and Conservation Biology  at Northern Arizona University brings together students and faculty from across the University. Many ESES topics address questions that can inform decisions and solutions related to environmental issues made by governments, business and society.
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Earth and environmental sciences and their engineering and policy applications are at the forefront of critical issues facing society in the coming decades. Climate change, water scarcity, the growing demand on natural resources, and environmental sustainability are all challenges for the Southwest, the United States, and the global community.

In this Interdisciplinary PhD Program inEarth Sciences and Environmental Sustainability - Ecology, Evolution and Conservation Biology  at Northern Arizona University, you'll join a new generation of leaders, scientists, and engineers who will be uniquely trained to tackle these pressing problems. The goal of this degree is to foster integrative and transformative research that lies between the traditional science and environmental engineering sub-disciplines. You will take classes in environmental policy, in-depth seminars in research, an individualized group of classes specific to your emphasis, and classes to help you attain your individual career goals.


Career opportunities that might be pursued:

  • Research scientist
  • Post-secondary educator
  • Environmental consultancy supervisor
  • Environmental policy specialist
  • Resource management supervisor
  • Non-governmental organization leader

Detailed Programme Facts

  • More details:
    • Fall - Space available basis: July 31
    • Spring - Space available basis: November 30
  • Programme intensity Full-time
  • Credits
    60 alternative credits
  • Languages
    • English
  • Delivery mode
    On Campus

Programme Structure

Courses include:

  • The Environmental Science-Policy Interface
  • Regional Topics in Earth and Environmental Science and Policy
  • Research Methods in Earth and Environmental Science
  • Ecological Sampling And Monitoring
  • Biogeography
  • Plant Ecology

English Language Requirements

  • Minimum required score:


    The TOEFL iBT ® measures your English-language abilities in an academic setting. The test has four sections (reading, listening, speaking, and writing), each with a score range of 0-30, for a total score range of 0-120.

  • Minimum required score:


    The IELTS – or the International English Language Test System – tests your English-language abilities (writing, listening, speaking, and reading) on a scale of 1.00–9.00. The minimum IELTS score requirement refers to which Overall Band Score you received, which is your combined average score. Read more about IELTS.

    Get a free IELTS practice test

Academic Requirements

You need the following GPA score:

Required score: 3

Applicants for graduate programs must have the equivalent of a bachelor’s degree with a minimum GPA equivalent to 3 on a US 4.0 grading scale. Admitted applicants typically have an undergraduate GPA of or better on a 4.0 scale. No exam grade should be lower than 4.5 (European grade scale) or D (American grade scale).

Your GPA (Grade Point Average) is calculated using the grades that you received in each course, and is determined by the points assigned to each grade (e.g. for the US grading scale from A-F).

General Requirements

  • NAU Graduate Online application is required for all programs.
    • Undergraduate degree from a regionally accredited institution
    • Grade Point Average (GPA) of 3.00 (scale is 4.00 = "A"), or the equivalent. 
    • Admission to many graduate programs is on a competitive basis, and programs may have higher standards than those established by the Graduate College.
    • Transcripts
    Individual program admission requirements include:
    • GRE® revised General Test
    • 3 letters of recommendation
    • Writing sample
    • Personal statement or essay
    • Resume or curriculum vitae

Tuition Fee

  • International

    22882 USD/year
    Tuition Fee
    Based on the original amount of 22882 USD per year and a duration of .
  • National

    24484 USD/year
    Tuition Fee
    Based on the original amount of 24484 USD per year and a duration of .
  • In-State

    10480 USD/year
    Tuition Fee
    Based on the original amount of 10480 USD per year and a duration of .
We've labeled the tuition fee that applies to you because we think you are from and prefer over other currencies.

Living costs for Flagstaff

  • 1010 - 1500 USD/month
    Living Costs

The living costs include the total expenses per month, covering accommodation, public transportation, utilities (electricity, internet), books and groceries.


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