Triolet: Climate change

Temperatures swing from one extreme to another:
drifts of powdered snow in the west, tidal surges;
fires raging across Australia, winter in summer---
Temperatures swing from one extreme to another
as oceans rise and ice caps soften like butter. 
Into the ports crawl oil-spilling barges
as temperatures swing from one extreme to another:
drifts of powdered snow in the west, tidal surges.