Eco aid'black box'

摘要

The hopes raised by the 1992 Earth Summit in Rio de Janeiro, Brazil, now look about as substantial as an ice cream on Copacabana beach. International conservation aid has been overestimated, and we have little idea how successfully the projects it pays for protect biodiversity.rnDonor nations have never met the annual spending targets set at Rio, say Daniel Miller and Arun Agrawal of the University of Michigan in Ann Arbor and Timmons Roberts of Brown University in Providence, Rhode Island. The group conducted a mammoth survey of biodiversity-related projects in the recently launched AidData database of international aid finance, finding 9445 projects carried out in 171 countries between 1980 and 2008.