Mark Carney: firms must come clean on exposure to climate change risks

Bank of England chief joins with Michael Bloomberg calling for disclosure to help capital manage risks and seize opportunities in global warming fight

The governor of the Bank of England has warned that the fight against climate change will be jeopardised unless companies with big carbon footprints come clean about their exposure to global warming risks.

Writing in today's Guardian, Mark Carney says a new set of guidelines drawn up over the past year should be implemented so that investors can allocate capital to those companies with the best ideas to hit the target of keeping the rise in global temperature to less than 2C.