Negative externalities: The problem of China's huge bike graveyards

Thanks to the BBC
http://www.bbc.co.uk/news/av/world-asia-china-43999482/the-problem-of-china-s-huge-bike-graveyards
....and in Australia
http://www.bbc.co.uk/news/av/world-australia-42304984/bike-share-teething-pains-they-re-throwing-them-in-rivers