"PARIS - Nations representing half the world's population signed a long-awaited, $12.8 billion pact Tuesday for a nuclear fusion reactor that could revolutionize global energy use for future generations.

"The ITER project by the United States, the European Union, China, India, Russia, Japan and South Korea will attempt to combat global warming by harnessing the fusion that runs the sun, creating an alternative to polluting fossil fuels."

If anyone's looking for a long-term job, they estimate that a demonstration reactor may be ready by 2040.

John