 The Greens' Caroline Lucas and Keith Taylor are feeling positive |
The Greens have begun a final push to persuade people there is a real chance a vote for them could make history and send their first MP to Westminster. They say supporting them will also send an important message to the three main parties to not neglect green issues.
"It would be great to get at least one or two seats. I think that's in sight and is a real possibility," said the party's Darren Johnson.
The main parties dispute the claim they have ignored the environment.
Keith Taylor, the Greens' principal speaker, said: "You have a chance to vote Green, use it, because every single Green vote sends a message.
"If you are in one of our target constituencies, you have a real chance of making history on Thursday."
Brighton Pavilion is the Greens' top target seat and the party says they have made huge gains in other areas such as Lewisham and Deptford.
They say their share of the vote overall has doubled since the 2001 general election and tripled in some places, but admit it does not mean they will get their first MP.
"I'm not saying it's going to happen, but it could happen and we are going to do everything possible in the next 48 hours to make sure it does happen," said Mr Johnson.
'Issues ignored'
 | Candidates in Lewisham Deptford Columba Blango - Lib Dem James Cartlidge - Conservative David Holland - UKIP Darren Johnson - Green Ian Page - Socialist Alternative Joan Ruddock - Labour |
He urged people not to use a protest vote for the Liberal Democrats, but to turn to the Greens instead to send a "positive message".
"If you are thinking of voting Lib Dem because you're fed up with Tony Blair and Michael Howard, all voting Lib Dem is doing is saying you are fed up," said Mr Johnson.
The Greens say their record in the European Parliament and on local councils shows they deliver on their promises, while they accuse the three main parties of ignoring issues like climate change.
The Conservatives, Labour and the Liberal Democrats strongly deny this.
Tony Blair has made tackling climate change a focus of his presidency of the G8 and points to Labour's tax breaks for fuel efficient cars and efforts to boost recycling.
 | Candidates in Brighton Pavilion Kimberley Crisp-Comotto - UKIP Ian Fyvie - Socialist Labour Party Tony Greenstein - Alliance for Green Socialism Keith Jago - Independent David Lepper - Labour Christopher Rooke - Independent Keith Taylor - Green Hazel Thorpe - Lib Dems Mike Weatherley - Conservative |
The Conservatives say they would offer better leadership internationally over the Kyoto targets, including persuading the US to sign up. They also promise to protect the UK's green belt land from building.
And the Lib Dems say all their policies have been tested for their "green" credentials, with new targets on renewable energy and waste recycling.
But the Greens say Labour's agenda includes ID cards and civil liberties infringements, retaining nuclear weapons and building more nuclear power stations. Mr Blair says no decision has been taken on nuclear power yet.