Countries must take urgent steps to value their natural capital – such as forests, peatlands and coastal areas – as part of their economic development, the World Bank has urged.
Placing a monetary value on natural ecosystems is a key step on the road to “green” economic growth, according to the World Bank, which published a report on green growth on Wednesday at a conference in Seoul, Korea.
By making such estimates, countries can develop policies that ensure the pursuit of economic growth does not occur at the expense of future growth potential, by destroying natural assets such as water sources or polluting air, rivers and soil.
Rachel Kyte, vice president for sustainable development at the bank, said that the patterns on which economic growth had been achieved in recent decades were unsustainable, because of the amount of environmental degradation involved.
She said: "At current rates, we are in danger of undermining the basis on which growth has been achieved in the last decades. We do not believe that current growth patterns are sustainable."
She gave the example of the government of Thailand, which has moved towards more environmentally sustainable growth by attempting to place a value on its mangrove swamps. The exercise has been illuminating – chopping down mangrove for wood gives a return of less than $1,000 per hectare; removing the mangroves to make room for a shrimp farm might generate nearly $10,000 per hectare; but if the mangrove swamps were retained and their importance in providing a barrier against floods was taken into account, they could be valued at more than $16,000 per hectare.
Kyte acknowledged that few countries had so far taken steps to evaluate their natural systems in this way, and said the failure to do so had contributed to countries allowing their environment to be degraded in the pursuit of short term economic growth.
In 2010, India said it would become the first country in the world to publish accounts of its natural wealth as well as financial measurements such as GDP.