City parks play a vital role in the social, economic and physical well-being of America’s cities and their residents. As cities become more densely populated, and concern about the impact of climate change increases, planners, elected officials, and community advocates are taking a fresh look at parks and their potential to help address critical urban infrastructure and public health issues. City parks provide access to recreational opportunities, spur local economies, combat crime, and protect cities from environmental impacts. Parks are now recognized as powerful tools to address a number of challenges that cities face today.