Some of the biggest names in finance called on governments on Wednesday to strike a tough deal on emissions reductions in Copenhagen this December, in an effort to boost investment into climate change.

The investors, with a combined $13,000bn in assets under management, demanded higher commitments on emissions reductions than nations are likely to agree. Signatories include investors such as HSBC, Hermes, ING Group, Société Général, Swiss Re, Allianz Global Investors and numerous US and European public sector pension funds.