I am concerned there is another major issue along a similar timescale, (to climate change) an elephant in the room, that of food and energy security. This is giving me and many of my scientific colleagues much concern. Don’t we need to do something about food? The idea that you can cut down a rainforest to actually grow biofuels seems profoundly stupid.

Send out your big warships to watch your big waters, that no one may stop us from bringing you food.

No society is ever more than 9 meals away from total anarchy.

30 million people, all living on a small island where we produce enough food for say, 15 million, is a spectacle of majesty and insecurity this great country can ill afford.

The clever economists who tell us we don’t need British agriculture and that our farms should be turned into national parks seem to ignore the rather obvious snag that an unfriendly country could starve us into submission in a week.