Extend UK national park model across London, say campaigners

Founder of National Park City initiative, Daniel Raven-Ellison, says idea would make the city greener, get children connected to nature, and tackle obesity

The national park concept should be extended from the countryside to the urban jungle, say the backers of a bid to have Greater London declared the world's first "national park city".

Advocates of the idea want to increase London's green spaces, which currently make up 47% of its total land area, to 51% by 2051, and to help children connect with nature.