The Earth's climate is far too complex to be fully understood by individual researchers, groups or even nations. It is increasingly important to allow disparate organizations around the world to share data in an open manner, using common "community agreed" standards for web-based exchange. Collaboration on simulation software development is equally important. Truly integrated models of the Earth system require expertise that is beyond any individual institute, hence the need for reusable libraries/components/programs that are easily coupled to others, without moving the data if possible. Join us for discussion around issues in sharing data and models for interdisciplinary studies of the Earth system.