Scientists are due to take part in a brainstorming session to seek the future's clean, green energy sources.
Britain aims to cut carbon emissions by a fifth by 2010
Energy experts from the world's leading economies will join a two-day workshop at Oxford University to find solutions to the global warming crisis.
The scientists will present the fruits of their deliberations to a meeting of the G8 of key industrialised nations in Gleneagles in Scotland in July.
Tony Blair has made tackling climate change a priority of his G8 leadership.
The conference, at St Anne's College, Oxford, will also involve experts from the G8 states and the five largest developing nations; China, India, Brazil, South Africa and Mexico.
It is hoped the sharing of any technological advances with these states will help reduce any environmental damage associated with their economic development.
A spokesman for the Department of Productivity, Energy and Industry said the technical workshop aimed to bring together and co-ordinate international thinking on sustainable energy research.
The event, organised by the government-backed UK Energy Research Centre, comes as the debate over whether to expand Britain's nuclear power capacity is reignited.
Documents leaked at the weekend revealed that the new energy minister Alan Johnson is being urged to consider the "nuclear issue" shortly.
This has raised concern among some environmentalists that the government is about to embark on a huge nuclear power station building programme.
The government has pledged to cut carbon emissions (at 1990 levels) by 20% by 2010 and energy firms are being required to source a proportion of the energy they sell from renewable sources.
Mr Blair has said he does not want to "shut the door" to nuclear energy.
But in an interview in the Guardian, the government's chief scientist, Sir David King, said reports of an immediate return to nuclear power were premature.
He said: "This is an issue we will have to re-examine but not yet."