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46   World's largest marine protected area d... 산하온 2016-11-01 1185
45   Cleaning China's Smoggy Skies: China Re... 산하온 2014-09-17 1181
44   Paris climate deal enters force as focu... 산하온 2016-11-07 1174
43   Chinese environmentalists accuse 1,000 ... 산하온 2014-12-15 1172
42   EPA Urged to Clean Up Toxic Pollution f... 산하온 2007-05-25 1172
41   Arctic polar bears imperilled by man-ma... 산하온 2010-01-17 1151
40   China's heavy metal and chemical pollut... 산하온 2013-01-13 1151
39   Studies Find Heavy Heating Oil Has Seve... 산하온 2010-01-06 1131
38   Shipping Goes Up, Pollution Goes Down (... 산하온 2009-12-27 1122
37   After Oil Spill, China's Polluted River... 산하온 2010-01-06 1121
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