For unconditional admission a student must meet the following requirements:

1. A BS in biology, chemistry, geoscience, mathematics, or engineering with the following courses or their equivalent: 1 semester of introductory physics for science majors, 2 semesters of introductory chemistry for science majors, Calculus I and II. Students with a bachelor’s degree in other sciences will also be considered, subject to satisfactory completion of deficiency courses.
2. A minimum undergraduate GPA of 3.0 on a 4.0 scale, as calculated by the graduate admissions.
3. Graduate Record Examination (GRE) scores are used in conjunction with GPA's. For example a person with a GPA below 3.0 will need a GRE score better than average. Masters students who have succeeded in the Earth and Environmental Science s Program typically score higher than the 60th Percentile on the verbal and quantitative portion of the GRE.
4. For applicants whose native language is not English and have not completed a Bachelors degree at a US institution, they must meetEnglish, a minimum score of 550 on the following minimums: TOEFL iBT (minimum 81 overall, with sectional scores of at least 22 writing, 23 speaking, 20 reading, Test of English as a Foreign Language (or an equivalent score on a computer-based test) or 16 listening) or IELTS (minimum overall band of 6.5, with a speaking score a score of 7.0). 
5. Favorable letters of recommendation from people familiar with the applicant’s academic work.