Climate change has brought cities unprecedented challenges manifested in higher temperatures, heat waves, floods, and storms. In addition, the energy and transport sectors in cities contribute substantially to greenhouse gas emissions. Cities therefore have an important role to play in reducing global greenhouse gas and carbon dioxide emissions. Implementing green and cost-effective solutions to keep cities cool and reduce their residents’ dependence on air conditioning, is one important action. By working in harmony with nature, cities worldwide can find simple yet effective cooling solutions.