John Thorn

Yes, we've seen it all before. And yes, those who do not study history are condemned to repeat it. But no, the sky is not falling - baseball is such a great game that neither the owners nor the players can kill it. After some necessary carnage, market forces will prevail.

When ministers in this government talk about investing in education and skills, about making the planning system work; about employment law reform and delivering transport and power generation and broadband communication infrastructure, we are talking about raising Britain's productivity.

The science is clear that there is an increase in the amount of CO2 in the atmosphere. What is not clear from the science is how much of that increase is caused by human activity; and what also is not clear is what impact those increases have on the climatic cycle.