Field test stashes climate-warming carbon in deep ocean | Science News

ADVERTISEMENT

SUPPORT SCIENCE NEWS

Science News is a nonprofit.

Help us keep you informed.


News

Field test stashes climate-warming carbon in deep ocean

Strategically dumping metal puts greenhouse gas away, possibly for good

By
5:03pm, July 18, 2012

Iron deliberately dumped into a patch of ocean has triggered a chain of events that pulls carbon dioxide out of the atmosphere and keeps it out. An explosion of microscopic life fertilized by the metal sank to the depths of the ocean after soaking up the greenhouse gas.

Geoengineering advocates who think iron could be useful for combating climate change will probably be heartened by the new finding, reported in the July 19 Nature. Carbon stuck on the seafloor tends to stay there a long time.

“Every one atom of iron removed 13,000 atoms of carbon” from the air, says Victor Smetacek, a biological oceanographer at the Alf

This article is only available to Science News subscribers. Already a subscriber? Log in now. Or subscribe today for full access.

Get Science News headlines by e-mail.

More from this issue of Science News

[title_1]
From the Nature Index Paid Content