When you think of "green" cities that focus on making their metropolis environmentally friendly for its residents places like Portland, Austin, or Seattle might come to mind. But a new study shows that Chicago is actually the greenest city to work in within the U.S. for the second consecutive year.
What makes a city "green" or the most sustainable place to work in? That's what CBRE Group Inc. and Maastricht University in the Netherlands worked together to figure out. In their annual study, they tracked buildings in 30 of the biggest U.S. real estate markets that are LEED or Energy Star certified.
Commercial properties are often the biggest sources of carbon emissions in any one city, representing about 19 percent of total U.S. energy use, according to the Environmental Protection Agency. In this year's study, Chicago's city percentage of green offices is up from about 66 percent last year, putting it ahead of San Francisco, Atlanta, Los Angeles and Minneapolis/St. Paul.