Climate change chlorofluorocarbons

Other gases, such as chlorofluorocarbons (CFCs), also exhibit greenhouse effects but are controlled by the Montreal Protocol. As to the scientific and ethical dimensions of the effect of greenhouse gases, see Prue Taylor, An Ecological Approach to International Law Responding to Climate Change, 1997, at 9 et seq. 

The presence of ethers in the atmosphere is almost entirely the result of direct emissions from anthropogenic sources (e.g., Arif et al., 1997 Intergovernmental Panel on Climate Change, 2001 Johnson and Andino, 2001 http //en.wikipedia.org/wiki/Ethers and references therein). These sources can be quite varied and species dependent for example, many ethers are commonly used as industrial solvents many are formed as combustion intermediates and in the burning of biomass various branched ethers (e.g., methyl tert-butyl ether) are (or have been) used as fuel additives to increase octane number and reduce CO emissions dimethyl ether has being proposed as an alternative diesel fuel many fluorinated species have been manufactured, evaluated and used as possible chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) replacement compounds some halogenated species are used as inhalation anaesthetics or as chlorofluorocarbon replacements and polybrominated diphenyl ethers (PBDEs) are used as flame retardants. There are no major routes to ether formation in the atmosphere itself. 

The Climate Monitoring and Diagnostics Laboratory of die National Oceanic and Atmospheric Administration provides up-to-date graphs and illustrations on the changes in various atmospheric components, such as carbon dioxide, methane, chlorofluorocarbons, and many more. 

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