system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how are microplastics getting literally everywhere?

The ocean I unfortunately understand, what with all the plastic we throw in it. But I just read it was in fresh fallen antarctic snow! How?
gpt
Rain and snow are naturally full of microscopic crap.

Storms and winds whip up crap like dust, pollen, spores, and (now more recently) plastic microparticles into the air. 

Then atmospheric winds carry that crap all over the planet. 

Then water vapor in clouds condenses around the crap to form rain drops and snow flakes, and then the crap falls back down to earth.