The existence of first life (single-celled organisms) has been found in the sea 3.8 billion years ago but first life (plants) on land was found only 475 million years ago

Many scientists throughout the world are busy at work with a diversity of important issues such as climate change, development of new drugs, invention of new technology to explore the sea, marine pollutions,

According to Wikipedia, “oceanography, also known as oceanology, is the branch of geography that studies the ocean.”

Biological oceanography deals with the organisms which live in the ocean and study their behavioral patterns, their food habits and their breeding. Oceans are very rich in minerals and nutrients and Chemical oceanographers identify those beneficial ocean resources.

The study of physical conditions and physical processes within the ocean is physical oceanography, examining deep currents, the ocean-atmosphere relationship that influences weather and climate

Our oceans are being degraded by human activities that harm marine life, undermine coastal communities, and negatively affect human health.

The types of marine pollution can be grouped as ocean acidification, toxins, nutrient pollution, pollution from marine debris, plastic including micro plastic pollution, and underwater noise.

It is estimated that about 80% of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff

Millions of motor vehicle engines drop small amounts of oil each day onto roads and parking lots. Much of this, too, makes its way to the sea. Some water pollution actually starts as air pollution,

One of the many activities of the United Nations Decade of Ocean Science for Sustainable Development (2021-2030) is COP27.