1. Oceans occupy nearly 71% of our planet’s surface.
  2. The top ten feet of the ocean hold as much heat as our entire atmosphere.
  3. The average depth of the ocean is more than 2.5 miles.
  4. Water pressure at the deepest point in the ocean is more than 8 tons per square inch, the equivalent of one person trying to hold 50 jumbo jets.
  5. The world’s oceans contain nearly 20 million tons of gold.
  6. Three-quarters of the world’s mega-cities are by the sea.
  7. Since 2010, 80 % of people live within 60 miles of the coast.
  8. Although coral reefs comprise less than 0.5% of the ocean floor, it is estimated that more than 90 % of marine species are directly or indirectly dependent on them.
  9. There are about 4,000 coral reef fish species worldwide, accounting for approximately a quarter of all marine fish species.
  10. More than 3.5 billion people depend on the ocean for their primary source of food. In 20 years, this number could double to 7 billion.