There are a lot of buildings within the Chicago Loop that use cold water from the river for cooling. Here's an article I found about it: http://www.sustainable

There are a lot of buildings within the Chicago Loop that use cold water from the river for cooling. Here's an article I found about it: http://www.sustainable-chicago.com/2010/03/11/cold-as-ice-how-downtown-chicago-keeps-cool/ http://www.sustainable-chicago.com/2010/03/11/cold-as-ice-ho...