The objective of this case study was to gain a better understanding of the barriers and success of how green infrastructure and nature-based solutions are implemented. The research covers historical influences, policies, methods, city adapted stormwater management plans, and barriers and suggestions for future implementation of GI and NBS. The three main cities in the case study include Milwaukee, Wisconsin, Philadelphia Pennsylvania, New York City, New York. These cities are considered leaders in the green infrastructure movement. A large part of their success is influenced by the prior stormwater management plans the cities had in place, with support from the 2007 EPA Memorandum. Green infrastructure and nature-based solutions can help cities become more resilient to the affects of climate change by addressing the Triple Bottom Line.