This new book - published online October 2017 - is free available as an open access e-book (CC BY-NC 4.0) on the publisher's website.  The printed version will be available at BIS für Erdsystemforschung soon.

von Storch, H., Meinke, I. & Claussen, M. (Eds.) Hamburger Klimabericht – Wissen über Klima, Klimawandel und Auswirkungen in Hamburg. - Berlin: Springer, 2018. doi:10.1007/978-3-662-55379-4

More information about the contents (in German only) on the CEN webpage