[cma]

> and it's a very potent greenhouse gas.

It is still good to fix if it contributes to a significant amount of warming, but it isn't cumulative like CO2: it eventually degrades in the atmosphere.

[margalabargala]

> it eventually degrades in the atmosphere.

...into CO2

[jwilk]

It degrades to CO₂.

[cma]

A much less potent greenhouse gas, same thing as if it had been burned and not leaked.