Abstract
Carbon Cycle Many different processes and carbon sources can affect the concentration of atmospheric carbon dioxide (CO2), so to understand past, present, and likely future variability of CO2, those mechanisms and reservoirs must be identified. Bauska et al. present a record of the stable carbon isotopic composition of CO2 over the interval between 50,000 and 35,000 years ago, which reveals that the primary source of atmospheric carbon during millennial-duration events probably was organic carbon residing in the deep ocean, whereas more abrupt events occurring over centennial time scales were associated both with hydrological change in the tropics and rapid increases in Northern Hemisphere temperature. Geophys. Res. Lett. 45 , 7731 (2018).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
