Greening urban environments

The world's urban population is rising, so that by the end of the century half of humanity may live in cities. Urban populations are rising so fast in lower-income countries that it can lead to extreme environmental degradation, and dirty and unsanitary living conditions. Many such cities, as well as cities all over the world, lack effective environmental or "green" action programs, such as maintaining pollution and litter minimal environments and providing green areas. Parks, for instance, may provide leisure, recreational, and air improvement services, and link urbanites with nature. Communities may need to green their urban environments.

1. Using ecosystem approach for settlement planning
2. Implementing urban innovations
3. Creating sustainable cities
4. Concretizing local global dynamic
5. Altering landscape

1. Providing bird nesting sites in urban areas
2. Promoting planting of urban trees
3. Integrating biodiversity concerns with urban economic development
4. Illustrating urban farming possibilities
5. Growing food in urban areas
6. Developing urban ecovillages
7. Developing sustainable transport systems in cities
8. Depaving
9. Cultivating roof gardens
10. Coordinating beautified downtown areas
11. Conserving endangered urban trees

1. Conserving biodiversity in cities

1. Reporting on urban environments
2. Reconciling urban planning with availability of water resources
3. Involving residents
4. Establishing green belts
5. Educating town planners
6. Designing sustainable urban settlements
7. Designing community growth plan

1. Uncontrolled physical expansion of cities

1. Unfriendliness
2. Overefficient
3. Inefficiency