Hyderabad, India (population: more than five million)
To improve residents' lives, Hyderabad is planting trees and parks. The city is even creating "greener" buildings that use less water and less electricity for power. Adding green to a city has a number of
Advantages. For example, trees remove pollution from the air and make it cleaner. In Hyderabad, streets were gray and ugly a few years ago. Today, they are filled with trees and flowers, making the city cleaner and more colorful. Green areas also give people places to relax or exercise and walk. A study in the U.S. showed something else interesting: the greener a neighborhood is, the less crime there is against people and property—especially buildings and cars.