It's not the claim is it Sean. Wind, wave, sun, none of it's going to deliver what we need for decades so either we change our lifestyles dramatically - think no foreighhn holiday, imports by sea and slowly, reduction in plastics, ration electricity, get rid of cars and that includes taxis, etc etc or we have to take these 'risks' - them the choices. Guardian readers seem to think a few hugely innefficient, expensive and actually huge resource using (to manufacture and service) wind farms in the Thames estuary and a barrier in the Severn and it'll all be Hunky Dory (*genuine use not Bowie song referrence) back to 24 hour electricity and Tuscany mini-breaks. Wind farmer developers - white hats, Huzzah,drinks all round Nuclear Energy - black hats, global conspiracy by capitalits etc. We've a choice and neither's easy.