Global warming is an increase of the earth's temperature by a few degrees resulting in an increase in the volume of water which contributes to sea-level rise or increase in the average temperature of the earth's surface. It is a problem that humans made for the environment.
There are many causes of global warming. The first cause is carbon dioxide from power plants, carbon dioxide emitted from cars, carbon dioxide from airplanes and carbon dioxide from buildings. The next cause is methane. In addition nitrous oxide is another cause. Moreover, deforestation is cut down the trees and this one of Global warming causes. Another cause is city gridlock. Carbon in atmosphere and ocean is another cause. In addition, tundra is another cause of global warming and tundra means 'treeless plain' in Finnish. The last cause is permafrost. Permafrost is a solid structure of frozen soil, extending to depths of some area. And this cause because it effect badly in some species..
Global warming can affect negatively the oceans in three different ways. Firstly, it affects oceans by raising the sea level. As the global warming is increasing the glaciers, for example, in Greenland and Antarctic ice sheets are melting. So, the water's volume expands and the sea level rises. Secondly, it influences oceans by increasing the ocean’s temperature. The high temperature of the ocean affects the ecosystem by melting sea ice, affecting algae that grow in the sea and reducing the ocean's ability to absorb CO2. Thirdly, it affects oceans through increasing the ocean's acidification. Carbon dioxide which is produced by the living organisms in the oceans becomes carbonic acid. Scientists believe that increase of acidification could have a negative impact on marine life. It badly affects the coral reefs, calcium carbonates hells, fish and plankton. The number of these organisms is decreasing day after day because of global warming.
