BC
                     cam157_kk_d     cam157_kk_d      difference     rel diff(%)
Sources (Tg/yr)            7.473           2.589           4.884          65.355
        emission           7.473           2.589           4.884          65.355
Sinks (Tg/yr)              7.473           2.584           4.889          65.421
         dry_dep           2.286           0.883           1.403          61.378
         wet_dep           5.186           1.701           3.485          67.203
Lifetime (days)            6.624           8.312          -1.688         -25.486
Burden (Tg)                0.136           0.059           0.077          56.608
    accumulation           0.094           0.030           0.063          67.419
  primary_carbon           0.042           0.028           0.014          32.602