Age is creeping up on the world, and any moment now it will begin to show. The consequences will be scary...

Also in this special report:

Suffer the little children: Most of the rich world is short of babies.
A world of Methuselahs:The benefits, and the costs, of living longer.

The silver dollar: There is money to be made in the grey
market, but it takes thought.

Scrimp and save: Pensions will have to become far less
generous.

Work till you drop: Retirement has got out of hand.

China's predicament: Getting old before getting rich.

Into the unknown: The world has never seen population ageing before. Can it cope?