Campaigners are appealing for ideas to fight air pollution.
Green party activists are staging a meeting in Barnet and want suggestions to improve atmospheric quality in Barnet.
Party activist Andrew Newby said Barnet Council had introduced a clean air campaign in North Finchley and the stationing of two electric hire cars beneath Barnet House in Whetstone.
He said: “Something else we would like to see is 20 mph limits on Barnet’s residential and shopping streets - steadier driving reduces emissions as well as being safer. But other steps are needed urgently.”
Fellow party member Phil Fletcher said: “Air pollution is a massive problem even in leafy north London. We have monitored nitrogen dioxide levels across the borough and we found about half were above the EU legal limits.”
He said small particles in the atmosphere caused by diesel cars were also problem and that a 20mph limit was common in cities in Germany.
Mr Fletcher said the meeting was open to people of all persuasions and the public’s ideas are welcome.
Jean Drummond, a Green party member of the European Parliament, Friends of the Earth campaigner Jason Kiely and healthy air campaigner Andrea Lee will be speaking.
Paul Drummond, a research associate in energy and climate policy in the University College of London will also take the stand.
The meeting is at St John the Baptist Church in Barnet High Street on Thursday at 8pm.