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Ozone ban has been more effective in fighting global warming than Kyoto Protocol mongabay.com March 5, 2007
Signed in 1987, the Montreal Protocol on Substances that Deplete the Ozone Layer is an international treaty that limited production of ozone-depleting substances like chlorofluorocarbon compounds (CFCs) known as "freons" and bromofluorocarbon compounds known as Halons. These compounds are also known to be greenhouse gases dozens of times more potent than carbon dioxide. Guus Velders of the Netherlands Environmental Assessment Agency and colleagues report that without the reductions achieved under the Montreal Protocol, the amount of heat trapped by the atmosphere due to ozone-depleting substances would be roughly twice as high as it is today. The authors say "the savings in trapped heat are equivalent to about 10 years of growth in carbon dioxide concentrations" and note that the "climate protection already achieved by the Montreal Protocol alone is far larger than the reduction target of the first commitment period of the Kyoto Protocol."
CITATION: Vilders, G.J. et al (2007). The importance of the Montreal Protocol in protecting climate. PNAS Early Edition. March 9, 2007. Related Article Ozone loss hits record in 2006. The European Space Agency (ESA) said that ozone loss in Antarctica hit a record in 2006. ESA reports that ozone measurements made by the Envisat satellite showed the ozone loss of 40 million tons of ozone, a level exceeding the previous record ozone loss of about 39 million tonnes for 2000. Comments? News options
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