A Green Party parliamentary candidate is facing disciplinary action after calling for the reintroduction of nuclear power, which is strictly against party policy.

Chris Goodall, prospective parliamentary candidate for Oxford West and Abingdon, upset many party members with his assertion in yesterday’s Independent that atomic energy has a role to play in the fight against climate change. Mr Goodall was one of four prominent environmentalists disclosed as having had a change of heart about the nuclear issue, having moved from an anti-nuclear stance to believing that atomic power is a necessary part of the energy mix in the struggle to cut carbon emissions and halt global warming.

The others are Lord Smith of Finsbury, the former Labour cabinet minister who now chairs the Environment Agency; Stephen Tindale, a former executive director of Greenpeace, and Mark Lynas, the author of two studies of climate change. But while the others are in essence free agents, Mr Good-all’s case is distinctive in that his views are now formally at odds with one of his own party’s key policy positions.

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Resolute opposition to nuclear power has been a cornerstone of Green party policy for years, as is made clear in the party’s principal policy document, Manifesto for a Sustainable Society, which states unambiguously that a Green government, on taking office, would set a deadline for phasing out all nuclear power.

Mr Goodall’s remarks had left many party members “seriously concerned”, the Green Party leader, Caroline Lucas, MEP, said last night. “It is of great concern to me that a candidate should be promoting a policy which is at odds with the party manifesto, and I shall be taking that forward,” she said. “In any party, you have a range of different views, but once selected as a parliamentary candidate, you have a particular responsibility.”

The matter would be dealt with by the party’s regional council, after speaking to Mr Goodall directly, she said. Asked if this would include disc-iplinary action and possibly even de-selection as a candidate, Ms Lucas would only say: “We will be taking appropriate measures.”