Secret black cab tests in Arctic Circle
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Why are black cabs being tested in the Arctic Circle?

A brand new design for London's black taxi has been put through its paces in a hostile - and very clean - environment.

It's hoped this update will reduce pollution from the famous fleet of 23,000 vehicles.

Transport correspondent Richard Westcott reports.


So I Can Breathe

A week of coverage by BBC News looking at ways to cut air pollution.

  • 06 Mar 2017
  • From the section UK
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