If you've visited Helsinki, you've probably spent time in its leafy Esplanade Park at the center of the city. Now Helsinki has turned the ground below the park into a subterranean lake which can keep buildings and other civic operations cool as part of a growing network that replaces traditional air conditioning systems.
from Gizmodo http://ift.tt/1q83QGC
via IFTTT
No comments:
Post a Comment