By using dual radioactive tracers with differing lifetimes, Wilson et al. [2017] found short term increases
in CH4 and CO2 release during
periods of thaw
in a discontinuous permafrost were generally
offset by long - term accumulation of peat
in the ensuing millennia, leading the regions to continue to be net carbon sinks with negative atmospheric radiative forcing,
given the long life -
time of atmospheric CO2.