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A reality check on renewables

TEDxWarwick · 18:35 · Filmed Mar 2012
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How much land mass would renewables need to power a nation like the UK? An entire country's worth. In this pragmatic talk, David MacKay tours the basic mathematics that show worrying limitations on our sustainable energy options and explains why we should pursue them anyway. (Filmed at TEDxWarwick.)

pin This talk was presented to a local audience at TEDxWarwick, an independent event. TED editors featured it among our selections on the home page.
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As an information theorist and computer scientist, David MacKay uses hard math to assess our renewable energy options. Full bio

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