Atlantic Ocean as the mid-19th century. During the Age of Discovery, the Atlantic was also known to English cartographers as the Great Western Ocean. The International Hydrographic Organization (IHO) defined the limits of the oceans and seas in 1953, but some of these definitions have been revised since then and some are not used by various authorities, institutions, and countries, see for example the CIA World Factbook. Correspondingly, the extent and number of oceans and seas varies. The Atlantic Ocean is bounded on the west by North and South America. It connects to the Arctic Ocean through the Denmark Strait, Greenland Sea,
Global Ocean Commission the co-Chairs stated that the Commission is "inspired by the opportunity that exists for the high seas to play a regenerative role in restoring whole ocean health, and by the potential of a small number of bold proposals to stimulate a cycle of recovery." The high seas constitute 45% of the Earth’s surface and are essential to the health of the planet. Five key "drivers of ocean decline" were identified by the Commission: rising demand for resources; technological advances; decline of fish stocks; climate change (including ocean acidification), biodiversity and habitat loss; weak high seas governance. The mandate of the