We would like to invite you to submit abstracts to a special interdisciplinary session devoted to the Marginal Seas at the 2010 Ocean Sciences Meeting. It will be held in Portland, Oregon between 22-26 February, 2010. Abstract deadline is 15 October, 2009. We are encouraging scientists from other regions to attend and expect to see comparative studies of marginal seas around the world. Please visit http://www.agu.org/meetings/os10/ Session Title: Impact of Eutrophication and Climate Change on Marginal Seas (Session IT07) Conveners: Ming Li (University of Maryland Center for Environmental Science,U.S.A.) K.K. Liu (National Central University, Taiwan), Dan Ling Tang (Chinese Academy of Science, China) Kyung-Ryul Kim (Seoul National University, Korea). Marginal seas, which link coastal zones with open oceans, are highly susceptible to human perturbation and environmental pollution because of the high population density and bustling human activities near the coastlines and rivers. Moreover, there is compelling evidence that they are strongly affected by climatic processes. Therefore it is important to explore the mechanisms linking climatic forcing to coastal circulations and eutrophication to biogeochemical processes. This session is intended to bring together physical oceanographers, biogeochemists and climate scientists to address outstanding questions concerning the marginal seas. We solicit contributions on: (1) Observational and modeling studies of circulation dynamics includingclimatic impacts and exchanges with open oceans. (2) Observations documenting the effects of eutrophication and alteration of nutrient ratios on water quality and marine ecosystem integrity. (3) Data analysis linking climate variability to marginal seas. (4) Interdisciplinary models linking physical forcing to biogeochemical processes and predicting the impacts of climate change.