Tim Jennerjahn is a Senior Scientist and head of the working group “Ecological Biogeochemistry? at the Leibniz Centre for Tropical Marine Research in Bremen, Germany. Dr. Jennerjahn trained in geology and biogeochemistry at the University of Hamburg. His research focuses on the biogeochemical response of coastal aquatic systems to environmental change. He coordinates and participates in collaborative interdisciplinary research projects in Indonesia, India, Brazil, China, and Vietnam, and has conducted numerous expeditions. His research has been published in various journals and books. He currently teaches at the University of Bremen and in partner universities abroad, where he serves as thesis supervisor for students from Europe, South America, Africa and Asia. He is also an Editor-in-Chief of the international journal Estuarine, Coastal and Shelf Science.