380 360 (parts per million) - nasa earth observatory · 2008. 9. 22. · 1960 1970 1980 1990 2000...

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1960 1970 1980 1990 2000 280 300 320 340 360 380 CO 2 (parts per million) Year

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Page 1: 380 360 (parts per million) - NASA Earth Observatory · 2008. 9. 22. · 1960 1970 1980 1990 2000 280 300 320 340 360 380 CO 2 (parts per million) Year

1960 1970 1980 1990 2000280

300

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Year