Commenting on the scheme, Greenpeace energy advisor Darren Shirley states that its examples could be adopted in towns across Britain and adds that the organisation wants people to get in touch with their politicians and "demand real change".
"We're hoping that visitors to the city will see that these technologies aren't science fiction - they're already available today," Mr Shirley adds.
In related news, environment secretary Hilary Benn said recently that the UK was "on track" to meet commitments set out in the Kyoto agreement.
However, he also said that more could be done. Mr Benn argued that "we must do much more across the board" and that people have to "make a real change to every aspect of their lives".
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