Green leaders speak of a "different world", with less pollution and more solidarity, in conference speech.
Read moreSian Berry
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Video caption: Green Party conference: Bartley and Berry speech The co-leaders of the Green Party of England and Wales give ave a joint virtual conference speech to members
Green mayoral candidate launches campaign
Susana Mendonca
BBC Radio London Political Reporter
Berry: 'Get Brexit done was a lie'
Copyright: BBCThe co-leader of the Green Party has accused the Tories of lying over their policy on Brexit.
She says: "They've just shouted out 'get Brexit done', that's their job now.
"But that was a lie. We will go into a transition period with an 11-month deadline to get a trade deal agreed by all of the EU, let alone others around the world."
Ms Berry adds: "Brexit is going to be really, really hard for this country.
"Those of us in opposition will still have work to do and let's hope we work together."
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Video caption: Green Party unveils plan for Universal Basic Income by 2025 Sian Berry says there were "no strings attached" and higher earners would pay more in tax than they receive.
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Video caption: Green Party campaign launch: 'Some things are even bigger than Brexit' The Green Party of England and Wales launches its campaign, labelling this the "climate election".
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Video caption: Green Party co-leader Sian Berry: 'This must be the climate election' The Greens co-leader says "some things are even bigger than Brexit" at her party's campaign launch.
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Video caption: European elections 2019: 'This is not a victory for Nigel Farage' Green Party co-leader Sian Berry said her party was not just standing on a single issue in the European elections.
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Video caption: #BBCAskThis: Joanna Gosling speaks to Ashley Fox During the European Parliamentary elections campaign the main UK parties will be interviewed on the BBC News Channel.
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Video caption: #BBCAskThis: Ben Brown speaks to Sian Berry The Green Party co-leader answers questions sent in by BBC News viewers ahead of the European Parliamentary elections.
Climate Change: 'Possible to lower UK carbon emissions in 10 years'
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Video caption: Andrew Marr spoke to the Co-Leader of the Green Party Sian Berry AM