Heads-up on the oil slick that’s spread from that tanker that collided with a container ship, burned for a few days, and then went what scientists call “kablooey,” spilling what hadn’t burnt of its light oil into the fast-moving current of the Kuroshio. As CNN notes, most of the resulting mess has ended up on southern islands such as Amami Ohshima, but some has crept into the Yatsushiro and Ariake seas. As it’s very light oil, perhaps it will sublimate soon, but then again, perhaps it will not. Scientifically, we’re in uncharted waters. - William