New report suggests raising retirment age to 70 in rich countries

A new report is suggesting that the retirement age should rise to at least 70 in rich countries by 2050 as life expectancy rises above 100.
    
The World Economic Forum said that employees should continue working until 70 in nations such as the UK, US, Japan and Canada.
    
The increase will be needed, as the number of people over 65 will more than triple to 2.1 billion by 2050.
   
By then, the number of workers per retiree will have halved to just four.