<http://schema.org/alternativeHeadline>
"Maybe tech won't save the world, but these innovative concepts will make it just a little bit better: River power, pedal power, battery power and iPhone app power."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/transportation/blogs/4-cool-tech-ideas-for-green-cars-and-renewable-energy>