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… up to 350 kilometres from Earth. 2. Ozone, which has the chemical formula of “O3,” is a molecule composed of oxygen … living organisms. 5. Surface-level ozone is a result of chemical reactions involving emissions from vehicles, … and fire protection and contain various combinations of chemical elements, of which chlorofluorocarbons (“CFCs”) are …

… foams and other applications. But because of their chemical stability, CFCs and other related substances But because of their chemical stability, CFCs and other related substances remain … in refrigerators, air conditioners, insulating foams and chemical CFCs still exist in refrigerators, air conditioners, …

… risks posed by persistent organic pollutants, which are chemical substances that possess toxic properties, resist … UNEP in response to scientific evidence that widely used chemical substances, chlorofluorocarbons, were destroying the … into the troposphere and lower stratosphere and associated chemical reactions157 causes changes in atmospheric …

… and scientific assessments on: (a) The physical and chemical processes that may affect the ozone layer; (b) The … a reference to any annexes thereto. Such annexes shall be restricted to scientific, technical and administrative … cast by the parties present and voting, a second ballot restricted to the two candidates obtaining the largest number …

… greenhouse gases alters the thermal structure and chemical composition of the mesosphere significantly. Rashid … ‘transboundary air pollution’ means any physical, chemical or biological alteration in the composition or … or combination of such agents, including any physical, chemical, biological, radioactive … substance or matter which …

… the definition of “atmospheric pollution” should be restricted to activities having transboundary effects. 9 Some …