Ahead of this week's G8 summit, U.S. President George W. Bush says he wants to shift debate on global warming away from limits on greenhouse gas emissions to new technology that would reduce environmental harm without restricting energy use. In an interview with British journalist Trevor McDonald to be broadcast on ITV television Monday, Bush repeated his opposition to the Kyoto Protocol on climate change and said the United States would not sign it or any similar deals limiting gas emissions. "I think you can grow your economy and at the same time do a better job of harnessing greenhouse gases," Bush said. "That's exactly what I intend to talk to our partners about." British Prime Minister Tony Blair, who hosts the three-day summit of major industrial powers that begins Wednesday in Scotland, plans to make action on global warming a top focus along with tackling poverty in Africa. Bush spoke of his administration's investment of $20 billion (16.55 billion euros) in developing hydrogen-powered vehicles, zero-emission power stations and other technology. The Bush administration opposes the 1997 Kyoto treaty because officials believe it would raise energy prices and cost 5 million U.S. jobs.