JEDDAH: Restoring the ecosystem for a green Hajj requires good carbon, the CEO of the Saudi Green Building Forum has said. The SGBF, along with the UN Environment Programme, is studying the Al-Mashair area to restore land and look into its boundaries and carbon capacity. Al-Mashair covers 119 square kilometers and encompasses the key Hajj sites of Arafat, Muzdalifah, and Mina.