Also see the archival list of Science's Compass: Enhanced Perspectives
CARBON CYCLE:
Enhanced: Potential Impacts of CO2 Injection on Deep-Sea Biota
Brad A. Seibel and Patrick J. Walsh
Efforts to reduce carbon dioxide emissions are increasingly looking to the oceans, either through iron fertilization programs (see this week's Policy Forum by Chisholm et al.) or through CO2 injection into the deep sea. In their Perspective, Seibel and Walsh investigate how such deep-sea disposal may affect organisms that live in these environments. They warn that even small perturbations in CO2 or pH may have important consequences for deep-sea ecosystems and for global biogeochemical cycles. Detailed studies into these effects are needed before the risks and benefits of deep-sea carbon storage can be assessed appropriately.
B. A. Seibel is at the Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039, USA. E-mail: bseibel@mbari.org P. J. Walsh is in the Division of Marine Biology and Fisheries, National Institute of Environmental Health Sciences Marine and Freshwater Biomedical Science Center, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA.