One big announcement at COP26 was from the former head of the Bank of England, Mark Carney.

He announced 450 financial firms would use $130tn (£96.3tn) to invest in areas helping to achieve net zero.

Extinction Rebellion activist and co-founder of the COP26 climate action plan, Chidi Oti Obihara, calls it a "game changer", but lecturer in International relations at Cardiff University, Jen Allan, explains why she doesn't think it's transparent enough.

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