As political pressure grows over declining air quality in the world's big cities, London has become a test bed for policy among global capitals. The FT's Daniel Garrahan reports asks whether the transition to electric vehicles is being made quickly enough.
► Subscribe to FT.com here: http://bit.ly/2GakujT
► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
For more video content from the Financial Times, visit http://www.FT.com/video
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes
