The search for sustainable sources of energy continues with great urgency in many places. (bookpage.com)
The Giacomini Group's Federico Fioroni told CNBC that the company's work on hydrogen dates back to the early 2000s, as part of a wider project looking at different sustainable sources of energy. (cnbc.com)
One small island in Denmark is technically 100 percent powered by sustainable sources of energy. (scientificamerican.com)