David MacKay: A reality check on renewables | Video on TED.com
How much land mass would renewables need to power a nation like the UK? An entire country's worth. In this pragmatic talk from TEDxWarwick, David MacKay tours the basic mathematics that show worrying limitations on our sustainable energy options and explains why we should pursue them anyway.
As an information theorist and computer scientist, David MacKay uses hard math to assess our renewable energy options.
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