In Canada, this would be an oil slick, caused by a passing freighter illegally flushing out its tanks at sea.
Not so nice!
But in Iceland, it’s more like an Earth slick.
It’s the confluence of a river that is taking an 1100-year-old farm away and the desire for a new road to prevent rural depopulation in Borgarfjördur Eystri.
The concept of “nature” is a balancing act here.