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SUMMARY:Sustainable energy - without the hot air - David MacKay
DTSTART:20070517T114500Z
DTEND:20070517T130000Z
UID:TALK7386@talks.cam.ac.uk
CONTACT:Dr James Curley
DESCRIPTION:Energy and Climate change - they're in the news\, they're\n'hu
 ge'. Consumption is huge. Economic growth is huge. Our population\ndensity
  is huge. CO2 pollution? Huge! Potential of renewable power?\nHuge! Nuclea
 r power? That's huge too - and hugely costly to clean\nup... How to fix al
 l these problems? Well\, if only everyone turned off\ntheir mobile phone c
 hargers\, we'd be well on our way to a solution. Oh\nyes\, and let's remem
 ber to drive hydrogen-powered cars\, like Arnold\nSchwarzenegger. That'll 
 help. And don't forget magnetic levitation\,\nthat'll eliminate friction. 
 And if you must burn fossil fuels\, good\nold B.P. can neutralize your CO2
  emissions if you pay them just 6\neuros per tonne.\n\nPoppycock.\n\n"Ever
 y little helps!"\n\nPoppycock!\n\nTo understand these 'huge' issues\, we n
 eed numbers\, not\nadjectives. And we need numbers that are simple\, human
 -sized\, and\nmemorable. No millions\, no billions\, no Terawatt hours\, n
 o\nexajoules. In this talk I'll present simple back-of-envelope\ncalculati
 ons to see how our energy consumption stacks up compared with\nconceivable
  sustainable production.\n\n
LOCATION:Entertaining Room\, Darwin College
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