Four of Canada's biggest banks have left the UN-backed Net-Zero Banking Alliance, an initiative led by former Bank of Canada governor and now contender for Liberal leader Mark Carney that aims to accelerate climate action among financial institutions.

Mark Carney was the first non-British person to become governor of the Bank of England in its more than 300-year history when he took the job in 2013. He had previously worked at the investment bank Goldman Sachs, and served as the governor of the Bank of Canada, the country's central bank.

Mark Carney, the first non-Brit to run the Bank of England since it was founded in 1694 and the former head of Canada’s central bank, says he is entering the race to be Canada’s next prime minister fo