Research Article

The Oceanic Sink for Anthropogenic CO2

Science  16 Jul 2004:
Vol. 305, Issue 5682, pp. 367-371
DOI: 10.1126/science.1097403

You are currently viewing the abstract.

View Full Text

Abstract

Using inorganic carbon measurements from an international survey effort in the 1990s and a tracer-based separation technique, we estimate a global oceanic anthropogenic carbon dioxide (CO2) sink for the period from 1800 to 1994 of 118 ± 19 petagrams of carbon. The oceanic sink accounts for ∼48% of the total fossil-fuel and cement-manufacturing emissions, implying that the terrestrial biosphere was a net source of CO2 to the atmosphere of about 39 ± 28 petagrams of carbon for this period. The current fraction of total anthropogenic CO2 emissions stored in the ocean appears to be about one-third of the long-term potential.

View Full Text

Cited By...