Report, if you have a problem with this page“ ... to undertake a gargantuan task: calculate the value of all the services provided by all the ecosystems, from the forest to the floodplains to the open ocean, across the world... they came up with a number- $33 trillion a year- a headline-grabbing figure that was almost twice the global gross national product. ”
Joe Roman
From : Listed: Dispatches from America's Endangered Species Act
