The ocean's of Earth serve many functions, especially affecting the weather and temperature. They moderate the Earth's temperature by absorbing incoming Solar radiation (stored as heat energy). The always moving ocean currents distribute this heat energy around the globe. This heats the land and air during winter and cools the land in summer.
The oceans provide vital sources of protein, energy, minerals and other products of use the world over and the rolling of the seas across the planet creates over half our oxygen, drives weather systems and natural flows of energy and nutrients around the world, transports water masses many times greater than all the rivers on land combined and keeps the Earth habitable. Without the global ocean there would be no life on Earth. It is gravely worrying, then, that we are damaging the oceans on a scale that is unimaginable to most people.
We now know that human activity can have serious impacts on the vital forces governing our planet. We have fundamentally changed the global climate and are just beginning to understand the consequences of that, but just as serious, are the impacts on our oceans, the actual state of our oceans is a far cry from the natural norm. We need to defend the oceans now more than ever, because the oceans need all the resilience they can muster in the face of climate change and the potentially disasterous impacts this is already beginning to produce in the marine world.
The key threats to the ocean are; Cigarettes and cigarette filters, food wrappers and containers, caps and lids, bags, beverage bottles, cups, plates, forks, knives and spoons, beverage bottles (glass & plastic), cigar tips, straws, stirrers and beverage cans. There are so many more, oil spill accidents, domestic sewage, industrial discharges, urban and industrial run off, sea dumping, I could go on and on, but I am sure you have read of them all. Plastic waste kills many marine animals when they mistake plastic for food, to humans, these are items of comfort, if not necessity, but to marine animals, they can be a floating mine field.
The Earth's oceans are all connected to one another. Until year 2000, there were four recognized oceans, the Pacific, Atlantic, Indian, and Arctic. In 2000, the International Hydro graphic Organization delimited a new ocean, the Southern Ocean (it surrounds Antarctic and extends to 60 degrees latitude. There are also many seas (smaller branches of an Ocean); seas are often partly enclosed by land. The largest seas are the South China Sea, the Caribbean Sea and the Mediterranean Sea.
Take a walk along any beach anywhere in the world and washed ashore will be many plastic bags, bottles and containers and many other harmful items that are a danger to marine animals. This is so true, I have walked our beach (Lake Michigan) and have seen this and plastic too far out in the water to reach. When people leave our beach they leave so much garbage (even though the Park provides garbage cans, right on the beach for use). The wind blows all the loose stuff toward the water, I try to retrieve as much as I can and I am sure you do also, I feel so helpless about this situation.
It is important that we address the issues that affect the Ocean, 90% of sea creatures live in the sunlight zone, which is the zone most affected by global warming and oil pollution. We must stop these problems because if we don't, we will hurt and maybe even kill our sea life. Don't pollute the Ocean, Seas, Lakes , Rivers and streams, help preserve our eco-system. The more we recycle the less waste and debris will end up in these beautiful waters. I am sorry, I can't help myself, I wanted to get all this in, it is so important, and there is so much literature on Google about this, this is where I retrieved my information, thanks for listening my friends.