HR: 11:05h
AN: B32A-04    [Abstracts]
TI: Global iron connections
AU: * Ridgwell, A
EM: aridgwell@eos.ubc.ca
AF: University of British Columbia, Department of Earth and Ocean Sciences, The University of British Columbia, 6339 Stores Road, Vancouver, BC V6T1Z4 Canada
AB: The environmental conditions at the surface of the Earth are determined by the interactions of the physical, chemical, biological and human processes that transform and transport materials and energy. This is the Earth system - a highly complex entity characterized by multiple non-linear responses and thresholds, with linkages between often disparate components. The interaction with climate of atmospheric transport of soil material, dust, and the global biogeochemical cycling of iron is a prime example of the interconnected nature of the Earth system. Here I use the role of global iron connections to highlight some of the new challenges faced and the need to take a more defocussed and holistic view of the response of climate to perturbation.
DE: 1600 GLOBAL CHANGE (New category)
DE: 1615 Biogeochemical processes (4805)
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting