圣路易斯大学的环境科学计划致力于发展对地球自然系统及其与人类社会的联系的科学理解。该计划代表了多个部门之间的合作努力，以提供衔接传统学术界限的学位机会。该课程由地球与大气科学系主持，为学生提供建议和指导。环境科学包括对地球环境的研究，该地球环境包括地圈，水圈，大气层和生物圈，重点是人类与这些圈的相互作用。学生将学习这些领域在自然界中如何相互作用，人类活动如何影响环境以及人们如何受到不断变化的环境的影响。设计环境科学计划的目的是让学生首先获得各个领域的全面知识基础，然后再将重点放在一个或多个子学科上，例如：
The environmental science program at Saint Louis University focuses on developing a scientific understanding of Earth's natural systems and their interconnections with human society. The program represents a collaborative effort between several departments to provide a degree opportunity that bridges traditional academic boundaries. It is hosted by the Department of Earth and Atmospheric Sciences, which provides student advising and mentoring. Environmental science encompasses the study of Earth's environment, which is comprised of the geosphere, hydrosphere, atmosphere and biosphere, with emphasis on human interactions with these spheres. Students will learn how these spheres interact with each other in the natural world, how human activities influence the environment and how people are affected by the ever-changing environment. The environmental science program is designed so students first gain a thorough foundation of knowledge in all spheres and then focus more on one or more sub-disciplines, for example: soil, water, energy or climate change. The breadth-plus-depth structure of the program prepares students for advanced study toward M.S. or Ph.D. degrees in scientific disciplines, professional schools such as law or public health, or for immediate employment in industry or government.