<iframe title = "The Tech That Could Fix One of Wind Power's Biggest Problems" width="700" height="400" src="https://www.youtube.com/embed/Wlxz-KzebbQ?autoplay=1&modestbranding=1" frameborder="0" allowfullscreen></iframe> <br>Hello World's Ashlee Vance paid a recent visit to Iceland's capital city of Reykjavik to see the next part of the green energy story. He found a start-up called ...