Efficiency gains can preempt the need for oil in urban transportation.

Masdar is being built using Personal Rapid Transit. These systems can move car-size compartments using an electrical equivalent of 200 miles per gallon of diesel.

http://www.npr.org/templates/story/story.php?storyId=90042092

You really should just buy a banner advert on the site.

How much commission do you charge for banner ad sales kiashu ?

Seriously though, please don't spam thread after thread with the same message - eventually you'll become annoying, even if the thrust of your argument is generally agreed with.