David MacKay: A reality check on renewables

Filmed Mar 2012 at TEDxWarwick

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.

David MacKayDavid MacKay
Professor
As an information theorist and computer scientist, David MacKay uses hard math to assess our renewable energy options. Full bio
Source: TED.com