On Wednesday, 16 September 2015, Dr. Klaus Rennings, Head of ZEW's Research Department "Environmental and Resource Economics, Environmental Management", died unexpectedly. It was with deep regret and great sadness that the Board of Directors, the works council and all ZEW employees learned of the passing away of Klaus Rennings.

Klaus Rennings had been working at ZEW since November 1994. He counted among those researchers who actively contributed to ZEW's development from the very beginning and who greatly identified with the institute and its work. ZEW has lost an extraordinary person and an outstanding researcher, who made a decisive contribution to the high reputation of the "Environmental Economics" Research Department.

The Board of Directors and the ZEW staff have also lost an experienced, sympathetic and dear colleague, who could always be turned to for advice. Our heartfelt sympathies go to his partner, his children and his family.