The Mekong Environmental Symposium 2013 is the first event organized by the German Aerospace Center, DLR and the WISDOM Project, and it will serve as an international platform for governmental decision-makers, scientists, and other organizations active in the Mekong context. We are looking for contributions from all six Mekong riparian countries – China, Laos, Myanmar, Thailand, Cambodia, and Vietnam – as well as from the international expert community. Translators for all six languages of the Mekong Riparian Countries will be provided throughout the conference. The event therefore will offer significant opportunities to meet colleagues who share the same interests and want to contribute to further trans-disciplinary information exchange for the benefit of the river basin. Whether it is in the field of river ecology, environmental monitoring, hydrology, socio-economics, energy, disaster management, or trade, to name just a few: we cordially invite you all to contribute to the numerous sessions planned for this three-day event. We expect to welcome about 300-350 participants to the event.