Swords into birdhouses?

where we kill each other off, and all that's left are the animals and plants.

of plastic. :/

Which will take at least 250 million years to be somewhat eaten by the earth's tectonic processes - melted and distributed into the mantle. Maybe. And think of all the "space junk" we left on the moon, Mars spacecraft crashes, rovers, Venus same trash - heck, possible future alien archaeologists may regard us as particularly notable "litterers" ! That's if (as expected by some) we never make it to another star. And not even counting space probes on their way out into the void - would that not be funny if one or two smacked into somebody else's moon? Not likely, but just barely possible, eh? :^)

Rick " waay too much coffee today " Jones

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In fact there are materials and techniques available to gobble plastic. The problem is in diverting enough capital from man's other "needs": Armaments, fast fashion, personal transportation ...

Trash on the moon is certainly an embarrassment but not life threatening. "Great Pacific Gyre".

Given Genesis 1:1, and the US motto on the money, there's at least a hint that the richest country could turn to an even wealthier "father". 1Chr 29:14,16
Check any politician's and pastor's speech on July Fourth, Thanksgiving and the like- and hold him to it.

A more immediate space junk threat is from that already within our planet's orbital influence. Space guys say they track it all [mostly], but I think the odds of a disastrous collision are closer to pure gambling.