It’s time water companies’ 25-year business plans went beyond accounting only for financial capital and included natural, social and human capital as well.

There is a growing recognition of the need to move beyond a dependence on traditional measures of economic health, particularly GDP.

The concept of natural capital, and the need to keep track of it through natural capital accounts, are building momentum in the UK.

London's green belt should be preserved and treated as a key part of the country’s natural capital 'asset register', according to the chair of the Natural Capital Committee.