Green Key since 2013.
Aalborg is Denmark's fourth largest city with a population of over 200,000 residents. In recent years, Aalborg has undergone a change and evolved from being an industrial city, to an oasis of architecture, exciting gastronomy and cozy metropolis.
Aalborg has named two important European sustainability documents: Aalborg Charter from 1994 and Aalborg Commitments from 2004. Aalborg is involved in the Sustainable Cities campaign, led by ICLEI (Local Governments for Sustainability).
About 50% of the rooms in Aalborg are eco-labeled with the Swan or Green Key.