http://liveearth.msn.com presents the 13 cities that are environmentally-friendly. See if your city made the list (sadly but not surprised my city didn't):

1. Reykjavik, Iceland
"Reykjavik has been putting hydrogen buses on its streets, and, like the rest of the country, its heat and electricity come entirely from renewable geothermal and hydropower sources and it's determined to become fossil-fuel-free by 2050."

2. Portland, Oregon, U.S.A.
"Portland is the first U.S. city to enact a comprehensive plan to reduce CO2 emissions and has aggressively pushed green building initiatives. It also runs a comprehensive system of light rail, buses, and bike lanes to help keep cars off the roads, and it boasts 92,000 acres of green space and more than 74 miles of hiking, running, and biking trails."

3. Malmö, Sweden
"...Sweden's third-largest city is a model of sustainable urban development. With the goal of making Malmö an "ekostaden" (eco-city), several neighborhoods have already been transformed using innovative design and are planning to become more socially, environmentally, and economically responsive."

4. Vancouver, Canada
"Drawing 90 percent of its power from renewable sources, British Columbia's biggest city has been a leader in hydroelectric power and is now charting a course to use wind, solar, wave, and tidal energy to significantly reduce fossil-fuel use. The metro area boasts 200 parks and 30 kilometers of waterfront, and has developed a way-forward-thinking 100-year plan for sustainability."

5. Copenhagen, Denmark
"The city christened a new metro system in 2000 to make public transit more efficient. And it recently won the European Environmental Management Award for cleaning up public waterways and implementing holistic long-term environmental planning."

6. London, U.K.
"When Mayor Ken Livingstone unveiled London's Climate Change Action Plan in February, it was just the latest step in his mission to make his city the world's greenest. Under the plan, London will switch 25 percent of its power to locally generated, more-efficient sources, cut CO2 emissions by 60 percent within the next 20 years, and offer incentives to residents who improve the energy efficiency of their homes. The city has also set stiff taxes on personal transportation to limit congestion in the central city, hitting SUVs heavily and letting electric vehicles and hybrids off scot-free."

7. San Francisco, California, U.S.A.
"Nearly half of all 'Friscans take public transit, walk, or bike each day, and over 17 percent of the city is devoted to parks and green space. San Francisco has also been a leader in green building, with more than 70 projects registered under the U.S. Green Building Council's LEED certification system. In 2001, San Francisco voters approved a $100 million bond initiative to finance solar panels, energy efficiency, and wind turbines for public facilities. The city has also banned non-recyclable plastic bags and plastic kids' toys laced with questionable chemicals."

8. Sydney, Australia
"The Land Down Under was the first country to put the squeeze on inefficient, old-school light bulbs, but Sydney-dwellers took things a step further in March, hosting a city-wide one-hour blackout to raise awareness about global warming. Add to that their quest for carbon neutrality, innovative food-waste disposal program, and new Green Square, and you've got a metropolis well on its way to becoming the Emerald City of the Southern Hemisphere."

9. Barcelona, Spain
"Hailed for its pedestrian-friendliness (37 percent of all trips are taken on foot!), promotion of solar energy, and innovative parking strategies, Barcelona is creating a new vision for the future in Europe. City leaders' urban-regeneration plan also includes poverty reduction and investment in neglected areas, demonstrating a holistic view of sustainability."

10. Bogotá, Colombia
"In a city known for crime and slums, one mayor led a crusade against cars that has helped to make Bogotá one of the most accessible and sustainable cities in the Western Hemisphere. Enrique Peñalosa, mayor from 1998 to 2001, used his time in office to create a highly efficient bus transit system, reconstruct sidewalks so pedestrians could get around safely, build more than 180 miles of bike trails, and revitalize 1,200 city green spaces. He restricted car use on city streets during rush hour, cutting peak-hour traffic 40 percent, and raised the gas tax. The city also started an annual "car-free day," and aims to eliminate personal car use during rush hour completely by 2015."

11. Bangkok, Thailand
"Bangkok has seen simple changes in the past decade that have helped to clear the air. Officials convinced oil companies to make cleaner fuels, introduced higher taxes on polluting motorcycles, and cleaned up taxi cabs, resulting in 47 percent cuts in the most dangerous pollutants in the atmosphere."

12. Kampala, Uganda
"Originally built on seven hills, Kampala takes pride in its lush surroundings, but it is also plagued by big-city ills of poverty and pollution. Faced with the "problem" of residents farming within city limits, the city passed a set of bylaws supporting urban agriculture that revolutionized not only the local food system, but also the national one, inspiring the Ugandan government to adopt an urban-ag policy of its own."

13. Austin, Texas, U.S.A.
"The city is on its way to meeting 20 percent of its electricity needs through the use of renewables and efficiency by 2020. Austin also devotes 15 percent of its land to parks and other open spaces, boasts 32 miles of bike trails..."
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Source of photos and content: http://liveearth.msn.com.