The　global　atmospheric　greenhouse　gas　(GHG)　accumulation　trajectory　has　been　subjected　to　fluctuations　in　the　context　of　the　COVID-19　pandemic.　Country-level　virus　prevalence　and　geography　conditions　added　complexity　to　understanding　atmospheric　GHG　accumulation　sensitivities　in　terms　of　the　growth　rate.　Here,　extensive　data　sets　were　comprehensively　analyzed　to　capture　historical　and　projected　fate　of　atmospheric　GHG　concentrations.　Although　a　temporary　slowdown　was　observed　during　the　lockdown,　global　atmospheric　GHG　growing　rates　exhibited　a　sharp　rebound　during　the　early　economic　recovery　after　COVID-19,　which　would　threaten　climate　goals　without　proactive　measures.　Despite　this　consistent　global　trend,　various　countries　demonstrated　differential　relative　changes　in　growth　rates,　representing　their　specific　responses　to　the　pandemic　crisis.　After　systematic　consideration　of　socio-economic　and　demographic　factors　and　employment　of　optimal　regression　models,　transportation　and　industry　variables　emerged　as　the　strongest　predictors　for　country-specific　GHG　accumulation　sensitivities　during　lockdown　and　recovery　phases,　respectively.　Addressing　global　health　and　climate　change　issues　would　necessitate　sustainable　government　actions　and　economic　decisions　in　anticipation　of　future　pandemic-related　events.　©　2025　American　Chemical　Society.