The Green Party is campaigning on a wider range of issues than just the environment in today's elections.

Speaking to ePolitix.com at the end of last month, MEP Caroline Lucas said that green issues are "absolutely central to our concerns".

"But precisely because we recognise that progress towards sustainable development requires massive changes to the economy, massive changes to education, massive changes to almost every aspect of our lives, the Green Party doesn't just stand for a narrow concept of the environment," she said.

"It stands for a whole set of issues, including opposition to the privatisation of public services, including racial equality and so on."

She added that the proportional electoral system used in European and London assembly elections would help the party.

"We have seen what happened in Scotland where in the elections to the Scottish parliament we went from one Green up to seven," Lucas told this website.

"That is what PR does and that is what we can do when we can demonstrate a proven track record on the ground.

"That is what this time around we can demonstrate in the European parliament for the first time.

"Last time around people were, in a sense, voting for us on trust. We couldn't point to a track record in the European parliament, we could say trust us.

"Now for the first time after five years we can say look, this is what we have done, this is what we have achieved, please re-elect us and I think that is a very powerful message."

She also said the Green Party is "deeply critical of the lack of democracy in the European institutions".

"I think many on the left would share our critique about the lack of democracy, many on the left would share our critique of the fact that it is very much in its present state a club for big business and we want to change that," the MEP added.