Australia's Great Barrier Reef has always been considered one of the world's natural wonders, but now we know how much some economists think it's really worth.
원문출처 : http://www.cnn.com/2017/06/26/asia/australia-great-barrier-reef-value/index.html
원문출처 : http://www.cnn.com/2017/06/26/asia/australia-great-barrier-reef-value/index.html