A third runway at Heathrow would triple the number of early deaths from pollution linked to the airport, a new study claims.
In contrast, moving London's main airport to the Thames Estuary would cut the number of deaths, the report by the Massachusetts Institute of Technology and Cambridge University says.
More top news
Anti-fox hunting campaigners marched from on Downing Street to oppose controversial promise to hold a vote to repeal the Hunting Act.
Thousands of drivers were caught illegally using their mobile phones on London's roads following a major crackdown.
A motorcyclist is fighting for his life in hospital after a crash with a car in Kensington.