We found a matchYour institution may have access to this item. Find your institution then sign in to continue.Title14C Activity and Global Carbon Cycle Changes over the Past 50,000 YearsAuthorsHughen, K.; Lehman, S.; Southon, J.; Overpeck, J.; Marchal, O.; Herring, C.; Turnbull, J.PublicationScience, 2004, Vol 303, Issue 5655, p202ISSN0036-8075Publication typearticleDOI10.1126/science.1090300