The large subduction zone earthquakes are responsible for most of the ocean-wide tsunamis, such as the recent tsunami in Japan.

VOA: special.2011.06.07

International conventions are an essential tool for protecting marine biodiversity, given the lack of physical barriers in the ocean to confine species to a single zone.

UNESCO: Open Access to Scientific Information

Which is a shame, because the U.S. has the largest federal water zone in the world, with more ocean area suitable for deep-water fish farming than the country has arable land area.

FORBES: Regulatory Uncertainty Drives A Fish Farmer To Foreign Waters