San Francisco, California

1. San Francisco consists mostly of a hilly geography, with more than fifty hills within city limits.
2. The biggest and most well-known park in the area is Golden Gate Park.
3. San Francisco is the second most densely populated city in the United States

San Francisco, CA

Top Ten Greenest Economic Cities

The rankings explain the presence of a green economy among United States cities. These indicators gauge, for instance, which cities’ public transit, renewable energy, local food, and development approaches are more likely to either limit or intensify the negative economic and environmental impacts of fossil fuel dependence.
The rankings are based on the presence of a city or public-private incubator for clean technology industries, including renewable energy, advanced transportation, advanced water treatment, alternative fuels, green building, and energy efficiency.