RT Journal Article SR Electronic T1 CLIMATE CHANGE; A Far-South Start for Ice Age's End JF Science JO Science FD American Association for the Advancement of Science SP 1847 OP 1847 DO 10.1126/science.317.5846.1847a VO 317 IS 5846 A1 Kerr, Richard A. YR 2007 UL http://science.sciencemag.org/content/317/5846/1847.1.abstract AB