Mass. company making diesel with sun, water, CO2

``"If we're half right, this revolutionizes the world's largest industry, which is the oil and gas industry," he said. "And if we're right, there's no reason why this technology can't change the world." The doing, though, isn't quite done, and there's skepticism Joule can live up to its promises. National Renewable Energy Laboratory scientist Philip Pienkos said Joule's technology is exciting but unproven, and their claims of efficiency are undercut by difficulties they could have just collecting the fuel their organism is producing.''