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… ozone is a result of chemical reactions involving emissions from vehicles, industrial pollution and sunlight. … ozone layer. The Montreal Protocol has also avoided the emissions of greenhouse gas equivalent to more than 135 … Ozone Secretariat, tThe Montreal Protocol has avoided the emissions of greenhouse gas equivalent to more than 135 …

… model HADCM3, within the frame of the A2 scenario of CO2 emissions (IPCC 2000). Since environmental parameters only … España velarde@correo.chapingo.mx The removal of emissions of greenhouse gases by biomass accumulation and / … and the speculative character of ‘green’ commodity trading. This is new territory for many, and will require …