Since 2012, global wind power generation capacity has nearly quadrupled. As technologies have matured and costs have come down, wind energy has been embraced by countries across the globe. But ...

Look up in the sky, it's a bird, it's a plane, it's ... a 20,000 cubic-meter power-generating airship, floating 6,560 ft (2,000 meters) above the ground. Introducing the S2000 stratospheric airborne ...