Researchers in Ireland are testing a giant kite that generates electricity by capturing the wind. The mobile, low-impact ...

The lightest wind speed year-round goes to Kelowna, B.C., with just a mean wind speed of 5.4 km/h. Thumbnail courtesy of Getty Images/Selamed Riyanto/1055714482-170667a.

On Ireland's blustery western seaboard researchers are gleefully flying giant kites -- not for fun but in the hope of generating renewable electricity and sparking a "revolution" in wind energy.