@timrider: "Save elevator/qi che power with roof based building2building ziplines! Super quick commute & likely reduced death defiance!" Sure it's not the most practical, but it's a fun thought and it caused us to have a good laugh. If there's anything we WOULD love to do to save the environment, it'd be to act like an urban Tarzan. @timrider wins a night at URBN, China's only eco-friendly hotel, located in the heart of Jing'an. The runner ups: @leirda with "mass broadcast of Captain Planet on public transport TVs to begin the recruitment of 1.3 billion planeteers. Go Planet!" (We loved Captain Planet as kids) and @cedric_c with "Save tons of CO2/month forbidding all media besides Shanghaiist. Less CO2, Greener city, only 1 media to spend green $ for ads." (because we're flattered). more ›

Ctrip is holding another tweet contest and they've invited us to be guest judges once again. This time around, the winning tweeter gets a night in the penthouse room of URBN Hotels Shanghai. URBN, located in Jing An, is China's first carbon-neutral hotel and uses green materials and technology to make your stay as environmentally friendly as possible. Just tweet Ctrip (remember to add the @ctripenglish) with the most creative way to make Shanghai's environment a little better. We'll announce the winners next Monday. Happy tweeting and an extra hurrah for minimizing the impact your love of luxury has on the environment! more ›