UNIVERSITY PARK, PA. — As the Marcellus natural-gas play unfolds in Pennsylvania, several trends are becoming increasingly clear, according to researchers at Penn State. First, most of the development is…

DENVER — The International Erosion Control Association (IECA) introduced four new Educational Tracks to replace its eight previous Technology Sections. According to the association, these new streamlined tracks will allow…

RESTON, VA. — In 1884, the second U.S. Geological Survey (USGS) Director John Wesley Powell briefed Congress the need for a national mapping program, stating, "The map once constructed should…