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.

Economists, like royal children, are not punished for their errors.

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 A country once known only from British consular reports and intrepid travelogues is now awash with historical documents, letters, diaries, grainy video, weblogs and secret police files of questionable authenticity.

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.

Saudi Arabia is a puritanical state that claims a monopoly of wisdom and virtue.

Soaring prices for crude oil, falling production surpluses, wild speculation in commodities, a rush into the precious metals, turmoil in the Middle East, assertive oil producers: it is 1973-74 all over again, and at dictation speed.

Liberty in Islam is the liberty to be a Muslim, democracy likewise, individualism likewise.