Turin offers free public transport rides to combat dangerous pollution levels

City links Free buses in Turin, the 'horizontal elevator' of Las Vegas, Japan's recyling capital and the community at the heart of the Turner Prize feature in this week's round-up of the best urban stories

The best city stories we've collected this week include temporary public transport initiatives in Italian cities hoping to counter increasing air pollution, and the Japanese town on course to become the country's first "zero-waste" community. We'd love to hear your responses to these stories: share your thoughts in the comments below.