Proceedings of the 29th Annual International Conference on Very Large Data Bases held in Berlin, Germany on September 9-12, 2003. Organized by the VLDB Endowment, VLDB is the premier international conference on database technology.

Following the successful publication of the proceedings of 6th Green House Gas Control Technology conference (GHGT-6), Elsevier is proud to publish the proceedings from the 7th conference, held in Vancouver in September 2004. The Greenhouse Gas Control Technologies conference series has established itself as the foremost conference bringing together the international energy community, providing a forum for the discussion of the latest advances in the field of greenhouse gas control technologies.