As the rainclouds descend on Sierra Leone’s tropical Kambui forest, a handful of khaki-clad rangers assemble for their daily patrol in the fight to preserve the West African country’s dwindling wilderness. As the rainclouds descend on Sierra Leone’s tropical Kambui forest, a handful of khaki-clad rangers assemble for their daily patrol in the fight to preserve the West African country’s dwindling wilderness. Environment Phys.org – latest science and technology news stories