We study caprid and bovid tooth enamel carbon isotopes to infer diet and vegetation.
Archaeological samples from Haua Fteah and Hagfet ed Dabba are analysed.
Palaeoenvironmental interpretations for the Gebel Akhdar (Libya) are made.
The environment was relatively stable from OIS 4 to the mid Holocene.
An increase in C4 plant species in the Neolithic is demonstrated.