Latest Issue of Science News


News

Field test stashes climate-warming carbon in deep ocean

Strategically dumping metal puts greenhouse gas away, possibly for good

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.

Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.

X
This article is available only to subscribing members. Join SSP today or Log in.