“Cities are in a really strong position to be able to create positive change and really be able to fight climate change through their transportation networks,”

Nearly a third of greenhouse gas emissions in the U.S. come from transportation, but in most American cities, it’s still very challenging to get around without a car. A new report (and online tool) looks at 20 cities across the country and how well those cities connect residents to their jobs through public transit, walking, or biking.