Air pollution levels in London and elsewhere in the UK have been alarmingly high since before the weekend. Yesterday central London registered the highest possible alert level: 10: Black. And the extremely high and dangerous levels reached outer London. 8: Red at sites in Enfield - a value associated with central London on particularly bad days.
Calls for action are growing - yesterday a group of several hundred schoolchildren visited the Mayor of London to lobby him to do something. He claims to be on the case - but there is still no sign of measures like those being taken in Paris, where there have been real cuts in the number of cars allowed into the city on days where pollution is high and the cost of public transport is cut. Paris is also completely phasing out diesel cars.
In the UK diesel cars are still on sale, long after their toxic effects became well known. There is only so much the Mayor can do, of course, a more important target of pressure is the government and the Prime Minister. So if you care about yours and other people's health, sign this petition.