Globally there are about 372,000 miles of coastline. Over 40% of the total human population, nearly 2.87 billion people, lives within 100 miles of an oceanic coast, a fact emphasized by the devastating tsunami in the Indian Ocean in 2004.
The average temperature of the ocean surface waters is about 62.6 degrees Fahrenheit. A 2°C rise in global ocean temperatures would wipe out 18% of insects, 16% of plants and 8% of vertebrates of earth.
In 2019, a study projected that in low emission scenario, sea level will rise 30 centimeters by 2050 and 69 centimetres by 2100, relatively to the level in 2000.