Greenizing Visualization in Japan
As shown in the graph above, Chiba has the highest ratio of green index since there's lots of mountains located in the city comparing to others. This means there's not enough buildings and houses which are capable of installing solar panels or trees. Therefore, this city records the lowest rates to other indexes.
Also, there is one thing noticeable that the cities of Tokyo and Osaka recorded lower rates of regenerative energy index (solar panel) than Kyoto, despite of the fact that they have more locations to setup solar panels (good roof) . Therefore, we can interpret this result that there are many possibilities to greenize these cities as long as there are enough spaces to exploit where regenerative energy systems like solar panels can be installed .
Greenizing Visualization in U.S
According to data below, cities of New York and California show similar aspects that potential green index is about 30% and regenerative energy index is about 20%. This means that both cities have enough potential spaces to install solar panels.