>>36720330It's the effect of their logia devil fruits gong into overdrive. They didn't just freeze and burn things when fighting, they permanently changed the island's climate.
It's what logia users can do. Even that shitter Ace caused it to stop snowing on Drum Island by just being there.
Another possible example is when Crocodile was defeated in Alabasta. About a minute after he lost consciousness, it started raining for days.
