SHANGHAI, CHINA - One city is using cars, windows and big buildings to promote an eco-friendly lifestyle.
The 2010 Shanghai World Expo is all about making it green.
Organizers there are showing off the new World Expo Center, featuring glass with metal mesh, able to absorb light and heat.
Other buildings are equipped with solar power fixtures and rain water recycling systems.
They're also using carbon-free cars to commute and show off when the expo comes in May.
Chinese officials say the measures could counteract 60 to 70 percent of the carbon produced in the park.
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