Green mayoral candidate Sian Berry visited Crystal Palace Park to highlight her pledge to protect the capital's green spaces.

Ms Berry - who is standing for mayor as well as a seat on the London Assembly - visited the park along fellow greens - Assembly member, Darren Johnson and Bromley and Bexley Assembly candidate Ann Garrett.

The visit marked the launch of the green candidates' green space policies.

And showed the party's opposition to plans to develop the park submitted by the London Development Agenct to Bromley in October 2007.

Ms Berry said that if she becomes Mayor of London she will reduce the price of off-peak travel on public transport.

And provide free-insulation for every home in the capital paid for with grants from energy providing companies.

Ms Berry also told the News Shopper that she would not extend the congestion charge.

She said:"I don't think the congestion charge zone shoud get any bigger.

"Eventually it will just become self-defeating because everyone has got a residents' discount.

"I do support the higher congestion charge for gas guzzlers and the discount for smaller cars but I wouldn't extend the zone any further than it currently is in future.

"We need to look at more sophisticated ways of tackling congestion."

Ms Berry also said that other mayoral candidates were using green rhetoric, without the policies to back it up.

She said:"What they have mainly been doing is stealing our rhetoric.

"So you find someone like Boris Johnson saying I am a green mayor, then you look at his environmental manifesto and it is basically about graffiti - it is basically about trees.

"It doesn't really get to the heart of where our carbon emissions are coming from.

"And largely that is our home emissions - it is or energy bills.

"So it is wasting money as well as wasting large amounts of carbon dioxide."

"My policies will deal with these things in a real way.

"The greens on the London Assembly have had a very good influence on Ken Livingstone for the last four years.

"They have had a casting vote over his budget so they have managed to get some things in like the Green Homes Scheme."

She added: "With someone like Boris Johnson he will come with a ready made majority of Tories - enough to pass his budget.

"He wouldn't have to listen to anyone and I think that schemes like that will be in danger."

Watch the video of Ms Berry talking about what she will do for London if she becomes mayor.