A reality check on renewables

Title:: A reality check on renewables
Speaker:: David MacKay
Description:: 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.

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Video Language:: English
Team:: closed TED
Project:: TEDTalks
Duration:: 18:35

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