Rapid climate shifts in the southern African interior throughout the mid to late Holocene

A detailed climate proxy record based on delta O-18, delta C-13, and grey i ndex of a well-dated stalagmite from Cold Air Cave in the Makapansgat Valle y of north-eastern South Africa suggests that regional precipitation, tempe ratures and vegetation oscillated markedly and rapidly over the last simila r to 6500 years on centennial and multi-decadal scales. The mid-Holocene pr ior to 5200 years ago was humid and warm. A fundamental transition occurred 3200 years ago, leading to drier and cooler conditions that culminated at 1750 AD, Comparisons with ice core records suggest synchronous changes impl icating rapid global teleconnections.