Fallon, StewartGuilderson, ThomasCaldeira, Ken2015-12-070094-8276http://hdl.handle.net/1885/24016We have developed a ∼45 year carbon isotope record (δ13C, Δ14C) from the coralline sponge Acanthochaetetes wellsi from Vanuatu in an effort to examine air-sea CO2 exchange using both the δ13C Suess effect and the bomb-14C transient. From 1953 to 1999Keywords: Carbon dioxide; Diffusion; Isotopes; Oceanography; Air sea exchange rates; Box diffusion models; Geophysics; air-sea interaction; biogeochemical cycle; carbon dioxide; emission; mixing; sponge; Melanesia; Pacific islands; Pacific Ocean; Vanuatu20032015-12-07