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The Green Party would offer a four-day week, universal basic income and cap private rents in a radical offer to the electorate.

But co-leader Caroline Lucas was forced to deny that her party was now indistinguishable from Jeremy Corbyn 's Labour which shares commitments to renationalise the railways and energy.

At the party's manifesto launch Lucas said Jeremy Corbyn had "obviously been looking at our 2015 manifesto and taken lots of our policies like bringing rail back into public ownership, cancelling tuition fees".

She told journalists at the offices of Wayra, which helps start-ups get going, that there were some important differences between Labour and the Greens.

" Brexit is the obvious one. I feel so let down by the fact that Labour has not been a rigorous opposition when it comes to Brexit essentially they have allowed the government to have a blank cheque when it comes to a hard Brexit and not only that helped them cash it in at the bank as well.

"On Brexit we are very clear that we want as close a relationship to the EU as possible. We want to stay part of the single market, we want to stand up for freedom of movement - Labour is not offering that.

"One the environment, climate change they don't go nearly as far as we do. They can't be champions of renewable energy and then also support Hinkley nuclear power station. They cannot be peacemakers and still support over £100bn for Trident nuclear weapons.

"So sadly we feel that there is quite a long way to go for Labour and we're proud to offer something distinct."

Jonathan Bartley, co-leader of the party denied claims that the so-called progressive alliance had died on its feet.

He said: "It's disappointing that the Labour leader and the Liberal Democrat leader didn't respond to our joint letter right at the beginning of the campaign to come and talk and have conversations about this."

But instead he claimed "there is an insurrection going on" with demand for collaboration between the Greens, Lib Dems, Labour and the Women's Equality Party coming from the grassroots.

"In 30 seats around the country people are talking, three candidates have shown leadership and stood aside and if there are wins in those seats it will be the Greens wot won it."

The Greens have stood aside in Richmond Park to help Lib Dems Sarah Olney keep her seat, in Ealing Central to give Labour's Rupa Huq a better chance, and Surrey West to try and defeat health secretary Jeremy Hunt.

Despite support from Labour's Clive Lewis, who is hoping to be re-elected in Norwich South, the pacts do not have backing from the leadership.

Labour has expelled three senior members in Surrey for forming a progressive alliance with local Greens and Liberal Democrats to unite behind an NHS doctor standing against him.

But Bartley said that the election is "just the beginning" and that the Greens were "ahead of the curve" when it comes to thinking about "what kind of democracy we want for the 21st Century".

What do the general election manifestos say about... Immigration

Housing

Benefits

Legalising cannabis

The Green Party has outlined its 10 key election pledges which it says will offer a "message of hope" to voters.

Co-leader Caroline Lucas vowed to create a "confident and caring Britain which reaches for a bigger future" as she unveiled the party's vision to transform politics.

The manifesto, which they've called the Green Guarantee, details plans to "roll back privatisation of the NHS" and give people a referendum on the terms of a Brexit deal.

It also promises to protect freedom of movement and "immediately guarantee" the rights of EU citizens in the UK.

Ms Lucas said: "The Green Guarantee is about hope and we need hope now like never before.

"I can't remember a time in my own lifetime where the future has felt more uncertain - with Brexit , with accelerating climate change, with an NHS in crisis.

"We face challenges that we can't possibly pretend to fix in the next 100 days, or the next 1,000.

"Threats to our economic future, threats to our security, threats to our planet.

"But ours is a message of hope because we believe if we stand together for what matters, we can change the course of history."