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What should catch your attention is the nature of the various carbon isotopes.Only two of the carbon isotopes are stable (C is obviously much more common (99%).“This is the first time we’ve been able to tease out the percentage of human-caused carbon dioxide from natural carbon dioxide along a large portion of the West Coast and link it directly to pteropod shell dissolution,” Richard Feely, a NOAA senior scientist, said in a statement.
The researchers created a detailed map of the varying carbon dioxide concentrations in different sections of the Pacific Ocean off America’s West Coast.
They used several decades of measurements taken through the U. Global Ocean Carbon and Repeat Hydrography Program, as well as new data from four NOAA West Coast research cruises conducted from 2007 to 2013 They found that concentrations of human-caused carbon dioxide are greatest in shallow coastal waters but diminish where water is deeper.
Since all the atoms are carbon, they should all have an Atomic Number of 6.
The top number is the Mass Number for each isotope.
The rest of the carbon isotopes are only of laboratory interest.