Selection was on a competitive basis. Abstracts will be forwarded to the conveners for review. David A. Kring, Lunar and Planetary Laboratory, University of Arizona, Tucson. This symposium will explore how this type of geologic process can also affect local and regional environments, global climate, and the biologic evolution of Earth. K02 Human Transformation of the Physical Landscape GSA Archaeological Geology Division.
Humans move more sediment per year than all other processes.
Soil erosion impacts both biologic productivity and global climate by changing the carbon cycle, the hydrologic cycle, and eolian dust flux. This symposium will integrate millennial-scale lessons of landscape degradation and conservation into the discussion of modern landscape transformation. ORAL Selected authors of essays for a book for the general public concerning the relevance of geology to environmental decisions will present brief narratives which demonstrate that, without geological knowledge, solutions to environmental problems will not be forthcoming. The symposium will be an interactive session involving extensive discussion with audience members. ORAL Keynote speaker Jonathan Harr will describe his observations on the effectiveness of the scientific testimony presented at the Woburn Toxics Trial.