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… and natural resources for their livelihoods. Loss or depletion of environmental re- sources in Africa and the … issues like ecosystems management; need to protect the ozone layer; pollution control; sustainable development; …

… 1983; the Vienna Convention for the Protection of the Ozone Layer, 1985; the Montreal Protocol on Substances that Deplete … to identify and eliminate the factors that are causing the depletion of species that are threatened or that may become …

… countries, and in an era of increasing resource depletion and scarcity, the need for collaboration in … due to competition and ineffective management. Resource depletion has led to increased human insecurity in many … all life on the planet. Hence, the air, atmosphere, the ozone shield and land are all considered part of the global …

… 64 “Biosphere”, the world’s largest ecosystem, refers to a layer of the Earth’s surface; the Man and the Biosphere … 132 E.g., PRC National Program for Phasing-out Ozone Depleting Substances; more than 100 policies and measures have been promulgated to protect the ozone layer and establish a base for developing and …