There is a danger that this election is turning into a personality contest, a sort of “London Mayor Idol” if you like, rather than a proper debate about policies that could deliver better services in the capital over the next four years. Instead you have a candidate running on their old record, a candidate who has never run anything and avoids all discussion of policy where possible, and someone like me who wants a proper debate about how we take London forward. I am serious about the job, and I don’t promise anything I cannot deliver. See my Contract for London for further details.

Sian Berry

There do seem to be a lot of policies in this election that are made up in the back of taxis on the way to the press conference. My favourites of these are both from Boris Johnson. He said he will plant just 10,000 trees, when we are already half way through a programme of planting a million trees in London, so he clearly knew nothing about this and just made his number up. The other classic was when he said he’d put bus conductors back on every bus – a great idea, but he underestimated the cost by more than £100 million.

Because the London Greens have worked on the budget for the past four years (since Ken Livingstone has had to rely on our votes to get his budget through since 2004) our policies are much better thought through. We do know what our policies cost and how we’ll pay for them, unlike some other parties’ candidates.