Governments and Corporates raise cash to fund their activities via the process of issuing bonds. It is just another term for borrowing money, and thus getting into debt.

The Debt Market is vast. The global bond market is worth £59 Trillion ($90 US Dollars).

This debt is accruing interest to the creditors, such as fixed income investors like pension funds or ibsurance companies.

£59 Trillion is a lot of debt.