Sir Nicholas Stern, head of Britain's government economic service and the former World Bank chief economist, put that fear to rest last fall when he said that the cost of not acting against climate change will be immeasurably higher, typically amounting to about 20% of global gross domestic product per year, whereas the cost of action to reduce greenhouse gas emissions can be limited to about 1% of GDP per year.
Au contraire, comme l'a démontré Nicholas Stern, directeur des services financiers du gouvernement britannique et ancien économiste en chef de la Banque mondiale, c'est plutôt l'inaction qui serait extrêmement coûteuse.