10 world's cleanest city

Despite rapid growth and dense population density, but the city still maintains a fresh air and friendly environment.1. Calgary (Canada)
 According to research by Forbes magazine, Calgary is located on the "edge of the belt, Canada's largest energy and enjoy the lowest tax rates as well as at the most stringent regulations."

Calgary's economy is dominated by oil and gas industry, in addition to manufacturing and services. The pride of this city is an impressive infrastructure to become one of the fastest growing cities in the world.Two. Honolulu (Hawaii, USA)
 Honolulu is the capital of and is the most populous in the state of Hawaii. Honolulu's climate is warm, semi-arid and year round sunshine. Although located in the tropics, the climate (temperature, rainfall and humidity) is moderated by the middle of the ocean in Hawaii.

The industries located in this area is mainly light industry and no pollution. Excellent bus system reduces emissions and maximum levels of traffic fumes into the environment. The proximity to the ocean also help Honolulu become healthier.
 3. Ottawa (Canada)
 Ottawa, Canada's 2nd representative on the list this is one of the volunteer program where environmental protection green, clean world's best.

Ottawa organizes regular annual activity, most notably the Winterlude Festival in Rideau Canal in winter and the National Day celebrations on Parliament Hill in Canada in July.
During the period from 15 April to 15 May, more than 60,000 volunteers will participate in clean up parks, streets, sidewalks ... in the city.
Like other green cities and citizens in Ottawa moved mainly by the subway system is great, therefore, significantly reduces harmful emissions into the environment.4. Helsinki (Finland)
 Helsinki is the capital and also the political center, finance, culture, education, the largest study in Finland. About 70% of foreign companies opening in Finland is based in Helsinki.

In 2009. Helsinki was chosen as the capital of the world model.
 5. Wellington (New Zealand)

Wellington is New Zealand's most populous region in the country Tuesday. Urban areas include Wellington city Wellington is situated on a peninsula between Cook Strait and Wellington harbor; Porirua City Porirua harbor located on the north city of Lower Hutt and Upper Hutt City.6. Minneapolis (USA)
 Minneapolis Hennepin county, commonly known by the name of Ho or blender city, is Minnesota's largest city and 48th largest in U.S. Federal.

Minneapolis is known for more than 20 lakes and wetlands, the Mississippi River, streams, waterfalls and many small canals. The abundance of water has led in the city air is not polluted.7. Adelaide (Australia)
 Adelaide is the capital and also the most populous city of South Australia and is the 5th largest city in Australia. The city was named after Queen Adelaide, wife of King William IV. Adelaide also known as the "city of churches".

Adelaide is a coastal city located on the eastern shore of Gulf St Vincent, the Adelaide Plains, north of the Fleurieu Peninsula, between the Gulf St Vincent and the Mount Lofty Ranges Mountains.8. Copenhagen (Denmark)
 Copenhagen is situated on the island of Zealand and Amager is the capital and largest city of Denmark. Copenhagen is recognized as one of the city of good living quality and environment-friendly world.

The water in the harbor to clean down so people can shower and about 36% of city residents commute by bicycle.9. Kobe (Japan)
 Kobe, the 6th largest city in Japan, is a most amazing destinations in the land of the rising sun with hot springs at Arima Onsen, Kobe port tower and Ikuta Shrine.

Kobe is a port city development. This city of the Kansai region of Japan and is part of the urban areas with Osaka and Kyoto Keihanshin.10. Oslo (Norway)
 Oslo, the Norwegian capital, is one of the most expensive cities in the world. Founded around 1048 by King Harald III of Norway, much of the city destroyed by a fire in 1624.

Danish King Christian IV of Norway was rebuilt and named the city of Christiania (Kristiania). In 1925, the city back to the old name of Oslo.
Oslo is the cultural center, scientific, economic and political life of Norway. This is also the focal point of trade, finance, industry of this Nordic country.