A Kennedy may be showing up Al Gore as a small time dreamer. 
   Robert Kennedy, Jr. says the Goracle’s challenge to the United States to generate its electricity entirely from renewable sources within 10 years is not fast enough.
   “Al Gore said the other day we can do this in 10 years, and a lot of people were skeptical about that. But we can do it in less than 10 years,” he told U.S. and Mexico border state governors at a meeting this week., arguing that it would be great for the economy, too.
   In solar energy resplendent border states of Arizona, California, New Mexico and Texas, setting up solar plants would prove cheaper than building more conventional sources of energy, he said.  “These are the Saudi Arabias of sun.”
   “We can build those plants anywhere, we can build them cheaper than nuke plants, cheaper than old coal plants, and cheaper than oil plants, and faster than any of them,” said Kennedy a member of the U.S. political dynasty and a senior attorney for the environmental group Natural Resources Defense Council.
(Reporting by Syantani Chatterjee)