| http://www.w3.org/ns/prov#value | - That was just below the 2003 record size of about 28.5 million km2.Chlorofluorocarbons, or CFCs, in refrigerants, aerosol sprays and solvents have been largely blamed for most ozone depletion.Experts generally agree that the man-made chemicals are leveling off since more than 180 countries in the 1980s signed the Montreal Protocol, which phases out some CFCs and other compounds such as chlorine an
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