Politicians sign up to those policies claiming that they will not hurt, that the technologies needed to make everything all right are available off the shelf, and that there is no real alternative because the decarbonisation policies currently in play are in some way ineluctable consequences of climate science.

ECONOMIST: Climate change

"The idea is to create a system that's expert in everything it has read and make that expertise available to the world, " he says.

WSJ: The Weekend Interview: Will Google's Ray Kurzweil Live Forever?

He added he understood the frustrations of the paramedics, but said the service was "doing everything we can" to make sure it had the vehicles available for crews.

BBC: 'Third of South ambulances' off road due to defects