h1

How Much is the Earth Worth? Putting a Price Tag on Nature’s Defenses

June 15, 2014

A group led by Dr. Robert Costanza has calculated the value of the world’s ecosystems…the group’s most recent estimate puts the yearly value at $142.7 trillion.

“I think this is a very important piece of science,” said Douglas J. McCauley of the University of California, Santa Barbara. That’s particularly high praise coming from Dr. McCauley, who has been a scathing critic of Dr. Costanza’s attempt to put price tags on ecosystem services.

“This paper reads to me like an annual financial report for Planet Earth,” Dr. McCauley said. “We learn whether the dollar value of Earth’s major assets have gone up or down.”

The group last calculated this value back in 1997 and it rose sharply over the past 17 years, even as those natural habitats are disappearing. Dr. Costanza and his colleagues estimate that the world’s reefs shrank from 240,000 square miles in 1997 to 108,000 in 2011.

:(

Read Full Article at the NYTimes

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s