On 16 June 2015, the Creativhotel Luise was the first hotel with a positive CO2 footprint (positive footprint) certified climate positive. Michael Braungart is involved.
The article is also published here:
www.openpr.de/news/860107/Creativhotel-Luise-weltweit-als-erstes-Hotel-von-Viabono-klimapositiv-zertifiziert.html