POM
                     b.e13.B1850     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)           38.123          58.690         -20.567         -53.950
        emission          38.123          58.690         -20.567         -53.950
Sinks (Tg/yr)             36.369          55.143         -18.774         -51.622
         dry_dep          10.034          14.223          -4.190         -41.754
         wet_dep          26.335          40.920         -14.585         -55.382
Lifetime (days)            6.826           6.757           0.069           1.009
Burden (Tg)                0.680           1.021          -0.341         -50.092
    accumulation           0.417           0.703          -0.286         -68.497
  primary_carbon           0.263           0.318          -0.055         -20.904