David MacKay

A reality check on renewables

18:35 •
Filmed Jan 2012 at TEDxWarwick
  1. Facebook
  2. Twitter
  3. Email

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 MacKay
/ Professor

As an information theorist and computer scientist, David MacKay uses hard math to assess our renewable energy options.  Full bio.

TED Talks are free thanks to support from