United States · Degree · Reviewed 2026-10-16

Doctor of Philosophy in Earth Sciences and Environmental Sustainability

Interdisciplinary doctoral curriculum investigating Colorado Plateau hydrology, forest fire ecology, dendrochronology, carbon fluxes, and arid land climate adaptations.

Official university details ↗Research checked, not sponsored

Application checklist & requirements

These requirements reflect published university guidelines available at the last review. Review official department guidelines before submission.

Academic degree / Prerequisites: BS or MS in forestry, geology, biology, or environmental science with min. 3.25 GPA
English language proficiency: TOEFL 80+ or IELTS 6.5
Standardized testing (GRE/GMAT): Optional
Thesis / Research statement: Doctoral research statement and writing sample
Recommendation letters: Three letters from research scientists

How much will it cost? How much funding is available?

Financial support / stipend: Graduate Research Assistantships with $26,000 annual living stipend, full tuition waiver, and health coverage
Application fee: $65
Tuition / joining costs: $0 (Doctoral fellow funded)

Dates and verification

Application deadline: January 15, 2027
Last source review: 2026-10-16

Official university details ↗Northern Arizona guide ↗Mentorship ↗Ask us — free ↗

Important verification note

Facts reflect official Northern Arizona University documentation reviewed 2026-10-16. Admissions, funding allocations, and eligibility thresholds are evaluated by the university.

Reviewed 2026-10-16 · Editorial standards · Report an issue