Course Description

We refer to Earth as the "Blue Planet" because of its abundance of liquid water; indeed, NASA's search for life on other planets starts with the search for water. While its importance for sustaining life is perhaps common knowledge, the extent to which we depend on water in every aspect of our everyday lives and activities is less obvious. Looking into the coming decades, the global need to decrease water stress and increase water quality is inescapable.

Course Description

Geography 431 is designed to further understanding of the natural processes of aquatic ecosystems, management of water resources, and threats to sustaining water quantity. Develop awareness and appreciation of the perspectives about water as a precious resource, commodity, and sometimes hazard. Learn how and why water is distributed unevenly around the Earth. Examine how resource management decisions are strongly related to water availability, quantity, and quality.

Earth Surface Processes in the Critical Zone

Credit: Blue and Gray Moon during Nighttime by Jaymantri is licensed under CC0

Course Description

Rapid changes at Earth's surface, largely in response to human activity, have led to the realization that fundamental questions remain to be answered regarding the natural functioning of the Critical Zone, the thin veneer at Earth's surface where the atmosphere, lithosphere, hydrosphere and biosphere interact. EARTH 530 will introduce you to the basics necessary for understanding Earth surface processes in the Critical Zone through an integration of various scientific disciplines.

Course Spotlight

From Advanced Python Programming for GIS (GEOG 489), learn advanced applications of Python for developing and customizing GIS software, designing user interfaces, solving complex geoprocessing tasks, and leveraging open source.Visit the course.

Faculty Spotlight

Dr. Tim Bralower standing on a research ship

Dr. Tim Bralower (Ph.D. 1986, Earth Sciences, University of California) is Professor of Geosciences at Penn State. He studies ancient climate change and mass extinction from the geological record. He has participated in five expeditions with the International Ocean Discovery Program and conducted field studies from Europe to the Caribbean and South America. He is a former Fulbright Scholar and a Fellow of the Geological Society of America. Bralower was Head of the Department of Geosciences for nine years. See what Dr. Bralower has to say about online education in Earth Sciences.