Mongabay: Deforestation and degradation is costing the world economy $2 to $5 trillion per year — an amount greater than Wall Street losses during the current financial crisis — said the lead author of a study that estimated the cost of environmental damage in terms of services provided by healthy ecosystems. Pavan Sukhdev, lead author of The Economics of Ecosystems and Biodiversity, a report released this past May, told BBC News that the costs from destruction of ecosystems dwarfs the …