In general, physical geography and environmental geology.

Specifically:
1) Rock weathering and soil formation processes. Applications toward paleoclimate interpretation, landscape evolution, and extreme event impacts (such as forest fires).

2) Stone conservation. Deterioration of ancient and historic stone monuments and architecture. Deterioration of archaeological objects. Impacts of acid precipitation.

3) Climatic and weather hazards, such as severe storms, global warming, and air pollution.

4) Environmental change evident in soil and sedimentary record, particularly in New Jersey.