Penn State Geosciences Professor Rudy Slingerland.

Penn State Geosciences Professor Rudy Slingerland.

Penn State Geosciences Professor Rudy Slingerland at the recent Susquehanna Shale Hills Critical Zone Observatory meeting.

Penn State Geosciences Professor Rudy Slingerland at the poster session of the recent Susquehanna Shale Hills Critical Zone Observatory that Penn State's Earth and Environmental Systems Institute held.

Image: Penn State