Orkney: A renewable energy revolution

Today's Perspective looks at what the future could or perhaps should hold when it comes to renewable energy. Our guest was Dr Laura Watts from the University of Edinburgh. Her book about the wind, wave and solar revolution happening on the Scottish islands of Orkney, entitled "Energy at the End of the World", has been described as "not a cool breeze" but rather "an electrifying storm" through this field's thinking.