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Cold Air Cave, Makapansgat Valley of South Africa
Holmgren, K., Lee-Thorp, J.A., Cooper, G.R.J., Lundblad, K., Partridge, T.C., Scott, L., Sithaldeen, R., Talma, A.S. and Tyson, P.D. 2003. Persistent millennial-scale climatic variability over the past 25,000 years in Southern Africa. Quaternary Science Reviews 22: 2311-2326.

General climatic conditions in the vicinity of Cold Air Cave (241'S, 2911'E) in the Makapansgat Valley of South Africa were inferred from high-resolution oxygen and carbon stable isotope data obtained from two TIMS U-series dated stalagmites. Climate during the Medieval Warm Period was warm and wet between 800 and 1400 AD.