Oceans and Climates
It is a proven fact that the climate of our earth is influencing the oceans on this planet. The point to ponder is to evaluate the negative effects of these climatic changes. It is only possible when all the factors influencing the oceans are known. Oceans of the world are the major factor in the ecosystem of the earth. They maintain balance on the surface of the earth. Only the oceans are responsible for stability of the climate of the earth. It would not be an exaggeration to proclaim that they are the parameters of the change on the surface of the earth.
The climate change is more upsetting for marine life as compared to land life. A warming world is a thorn in the flesh of the oceans and is becoming the major source of disturbing the biodiversity.
At the AAAS, William Cheung of the University of East Anglia in Norwich, UK, and his team revealed a model to calculate the influence on 1000 species of fish and shellfish all over the world by 2050 due to this obnoxious climate change. The model shows that the fish would shift towards poles at least forty kilometers in a decade. The shift in oceans temperature and climate would be unbearable for many of these species. They are worried about the extinction of many polar species. One aspect they have not mentioned is the Acidification of oceanic waters due to alarmingly high quantity of carbon dioxide.
Patrick Halpin of Duke University, says that high latitudes are the areas expected to be worst affected by global warming and other environmental changes. The oceans are overdone due to temperature; acidity and nutrient loading. Oceans are much vulnerable to chemical changes which are taking place rapidly due to climate change. The experts are comparing the present chemical change with the change of13 million years ago and this would definitely not be the positive change at all. CO2 will change the amount of calcium and other elements in ocean salts. They are of the view that too much carbon dioxide would result in the freezing of the oceanic waters and the surface of the oceans might drop.
The environment of the oceans gets colder resulting in the expansion of ice sheets. The ice sheets ultimately would lower down the surface of the ocean which ultimately leads to the changes of land weather. Acidification of oceanic waters has grown and has become a threat to the coral reefs and other water species. Industrial greenhouse gases in the atmosphere and a gradual increase in global temperatures are also affecting the oceans directly.
Warmer temperatures reduce the capacity of water to intake oxygen and hence make water lifeless. The scientists are of the view that by 2050 the temperature would rise 6 degrees of Fahrenheit, so the present oceanic ecosystem would not be able to maintain itself. Lack of oxygen in waters would reduce the production of water life. Warm waters take in less oxygen, and its impact is disastrous. The bacteria would be replaced by the nitrates and phosphorus filled bacteria. The plankton would not be able to get food from them and starve and a food chain might be lost. Another assumption is that the methane ice won’t melt and after nixing up with free oxygen would make bubbles and consequently increase in temperature.
The solar heat, the diversification of different plants and the discharge of greenhouse gases is alter the temperature and movement map of the oceans and their atmosphere. Even the Artificial change in the flow of wind and temperature directly affect the currents of the oceans. These temporary changes alter the temperature and atmospheric system of ocean. It is the proof of the attributes of the ocean that are sensitively receives each and every minor change in the climate.
Due to the climate warming the oceans are growing warmer and more acidic and this is the result of the green house gas theory. Since the few decades the oceans are in trouble and are feeling very uneasy due to human interference in their internal affairs. They have become more sensitive to the earthly changes and are ready to react in the most drastic way.