Gordon Brown and ex-US vice president Al Gore have jointly chaired a seminar on climate change at 11 Downing Street
Green Party Principal Speaker Keith Taylor commented: “At a time when the planet is screaming out for environmental leadership it's becoming clear that Gordon Brown isn't going to fulfil that role. Rubbing shóulders with that novel thing, a popular politician, will not fool anyone into thinking Brown is any kind of environmental champion.
"The truth is politicians know the answers to combatting climate change. What's missing is the political will to deliver the solutions.
"Gordon Brown is an environmental lightweight, and that's on the basis of his past performance, his present actions and his future intentions.
"Any attempt to cash in on Al Gores resurgent popularity - and so beef up his environment credentials - is belied by his record as Chancellor. Only yesterday he signaled his support for a new nuclear deterrent - an enormously expensive, dangerous and unnecessary programme, that show his true attitude to the planet.
"Brown is only the latest in a long line of Johnny-come-lately environmentalists. As Chancellor, he has had almost a decade to put in place the necessary regulatory framework to ensure the UK reduces it's emissions, but budget after budget has seen woeful inaction on climate change.
"Earlier this year the government were forced to admit they will fail to meet targets of cutting UK CO2 emissions by 20 per cent by 2010. This news broke just days after Gordon Brown delivered a UK budget which increased tax disc costs for gas-guzzling SUVs by just a few pence a week."