Carney’s actions have encouraged a £72bn lending boom, despite his earlier warningsGETTY

A boom in cheap loans provided by the Bank of England is fuelling Britain’s consumer debt bubble, The Sunday Times can reveal.

High street lenders have ramped up their use of a special lending facility created by Mark Carney, the Bank governor, after Britain’s vote for Brexit. They have now borrowed more than £72bn from the Term Funding Scheme (TFS), an analysis of public disclosures reveals — a 30% jump since the end of March.

The cash has been used by banks to fund the surge in credit card lending and in unsecured personal loans — the same types of credit that have prompted warnings of doom from Bank officials.

In effect, the Bank of England is the source of the credit boom that it…