Oceans have absorbed more than 90% of the world’s excess heat since the 1970s and absorb almost a third of human-produced carbon pollution. This cold, dense water also has a vital role in.

Vescovo's expedition mapped the entire length of the South Sandwich Trench for the first time ever, uncovering the Southern Ocean's new deepest point just south of the 60th parallel. And now, the.

The Mariana Trench is the ocean’s deepest point. The trench runs more than 1,500 miles long and stretches across a Western strip of the Pacific Ocean south of Japan and north of Papua New Guinea. The Mariana Islands are the trench’s namesake, sitting on a piece of the western ridge.

By Fiona MacDonald (Oregon State University/Flickr) Back in March 2016, scientists released the first audio recordings taken from the deepest point on Earth's surface, Challenger Deep, at the bottom of the Mariana Trench.

The world’s deepest point, the Challenger Deep, is located in the Pacific Ocean. The extreme depths of the oceans and seas result from subduction, where one of the two colliding tectonic plates descends into the Earth's mantle. Oceans alone cover about 335.3 million km 2, 65% of the Earth’s total areas, and have an average depth of 3,688 m.

The deepest point on the earth is Mariana Trench in the Pacific Ocean. The deepest point ever recorded on the Earth is Mariana Trench (also known as Marianas Trench ). It is situated between Guam and the Philippines in the western Pacific Ocean. It has shape of like- crescent type. It depth is around 11,034 meters.