The Sky's the Limit
Scan day: 07 February 2014 UTC
Description: Assigning an economic value to the world's ecosystems. From the Why Files.
Announcement: What's the worth of the Earth? According to Robert Costanza of the University of Maryland it's about $33 trillion. That, at least, is the average annual value of "natural capital" and the services provided by the world's ecosystems, says Costanza whose calculations were published in the May 15 issue of the journal Nature.
Size: 348 chars
Total pages in the index, 11800