THE WORLD'S first "ultra low emission zone" will be introduced in central London in 2020 to tackle air pollution, mayor Boris Johnson has confirmed.
The move will require vehicles driving in the congestion charge zone to meet new emissions standards at all times of the day and week, or pay a charge, as part of efforts to cut pollution which causes thousands of premature deaths in the capital each year.
The scheme will reduce the most harmful exhaust pollutants by more than half, officials said.
An extra £25 million is being provided by the Government for grants to help taxi drivers cover the cost of upgrading to a greener vehicle, in addition to £40 million already pledged by the mayor to help cabbies retire the oldest, most polluting taxis.
By 2018, all new taxis and all private hire vehicles ...