Firms must justify investment in fossil fuels, warns Mark Carney

Outgoing Bank of England governor says financial sector cutting back too slowly on investing in oil

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The outgoing governor of the Bank of England, Mark Carney, has said all companies and financial institutions must justify their continued investment in fossil fuels, and warned that assets in the sector could end up "worthless".

In an interview with BBC Radio 4's Today programme being broadcast on Monday, Carney said that although the financial sector was starting to cut back on investment in oil and gas companies, the process was not moving quickly enough.