In recent years, a major ocean current changed its path in two crucial ways. Now parts of the sea are rising, other parts are falling, ocean temperatures are breaking records — and Japan’s iconic fishing industry is in trouble.
Bathtubs and pools mislead us about the ocean: Its surface is anything but flat.
Seas pile up in some spots, pushed by trade winds or pulled by gravity toward big things like ice sheets. Amid it all, at the western end of large ocean basins, the fast... [10392 chars]