Earth's recent climate spiral.

[Anomalocaris]

Oh and how much Co2 does a T-72 emit on average, during a maneuver for example, or, lets not hope that will ever happen, in combat?

Intact, or as a burning wreck?

Considering the average Russian T-72s seem to become burning wrecks well before accumulating significant numbers on the odometer, I’d say burning wreck accounts for most of their life time GHG emission.