by Caroline Nelly Perrot Agence France-Presse   SILIANA, Tunisia (AFP) – Around 40 young Tunisian volunteers gather on a bare hill in the central region of Siliana. Their weekend mission — revive a burned forest by planting Aleppo pine shoots. Hamdi, from the eastern city of Sfax, gets straight to work after travelling 250 kilometres (150 miles) to the marginalised region. A camping and hiking enthusiast, he found out about the initiative on Facebook. “It’s […]