SimilarityRank
stratospheric 0.836 25293
depletion 0.807 11015
stratosphere 0.779 17932
warming 0.753 6577
dioxide 0.746 4762
pollutant 0.736 10281
photochemical 0.729 30345
nox 0.727 28969
cfc 0.724 9251
tropospheric 0.720 67421
chlorofluorocarbon 0.716 24061
pollution 0.716 2289
atmospheric 0.715 7829
emission 0.709 3620
sulphur 0.705 6647
radiation 0.705 4047
ultraviolet 0.704 15445
carbon 0.700 3195
chlorine 0.696 10537
co2 0.691 18793
nitrogen 0.690 6386
vocs 0.686 67555
&sub2; 0.684 34174
aerosol 0.684 13164
anthropogenic 0.682 51620