Prince Charles has joined forces with banking giant HSBC and Australian green finance guru Martijn Wilder's firm Pollination to launch a new initiative that aims to bring the novel asset class of "natural capital" into the investment mainstream.

The Prince of Wales, a long-time environmental campaigner, has also unveiled a charter, known as the Terra Carta or "Earth Charter", that asks corporate and financial signatories to adopt a radically sustainable approach to business that looks beyond just carbon emissions.