The year 2008 was a reminder to those who had forgotten that there is such a thing as history and that the cycle of famine and feast in commerce, first identified in antiquity and well understood in the Middle Ages, was not suddenly abolished in modern times.

A century ago, petroleum - what we call oil - was just an obscure commodity; today it is almost as vital to human existence as water.

Governments of rich countries spend some $6bn of tax money a year on disaster relief and development aid overseas, while each new earthquake, famine or tidal wave can attract 1,000 aid organisations, from the United Nations Children's Fund and Oxfam to the 'Jesus Brigades' of the American south and other charitable adventurers.

Europe and North America, we are told, are less dependent on energy-intensive heavy industry than in the 1960s and 1970s. It seems we squeeze more GDP out of a barrel of oil than in those benighted days.

Nature is not simply a technical or economical resource, and human beings are not mere numbers. To suggest that one can somehow align all the squabbling institutions of science, environmental management, government and diplomacy in an alliance of convenience to regulate the global climate seems to me optimistic.

Whatever else it was, Adolf Hitler's short-lived regime was also a colossal industrial process by which the wealth and productive power of much of Europe was wrenched from its normal purposes and converted into a machine for killing.

One of the consequences of the Iranian revolution has been an explosion of history. A country once known only from British consular reports and intrepid travelogues is now awash with historical documents, letters, diaries, grainy video, weblogs and secret police files of questionable authenticity.