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Doctor of Philosophy (Ph.D) in Earth Science and Environmental Sustainability

USA

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What will I learn?

Available Emphasis Areas: Climate and Environmental Change – Emphasis; Earth and Planetary Systems – Emphasis; Engineering Sustainable Systems – Emphasis.

This Doctoral program will prepare you to be part of a growing industry of leaders, scientists, and engineers addressing issues of climate change, water scarcity, natural resource demand, and environmental sustainability in the Southwest, United States, and the global community.

Careers

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 program, 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

Majors

  • Climate and Environmental Change
  • Earth and Planetary Systems
  • Engineering Sustainable Systems

Which department am I in?

College of the Environment, Forestry and Natural Sciences

Study options

Full Time (Minimum of 60 Units)

Tuition fees
US$28,778.00 per year
Start date

September 2025

Venue

Northern Arizona University

Flagstaff Campus,

FLAGSTAFF,

Arizona,

86011, United States

Entry requirements

For international students

Applicants must have earned a cumulative grade point average (GPA) of 3.0 out of a 4.0 scale for their bachelor’s degree to be considered for regular admission. Admitted students are expected to have undergraduate educational experiences, including general education studies, that are similar to those required for a baccalaureate at Northern Arizona University.

The minimum English proficiency scores for most programs are: 80 (TOEFL iBT) or 6.5 (IELTS). Scores must be sent directly to the Center for International Education from the Testing Institution.

*There may be different IELTS requirements depending on your chosen course.

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