Impact of Global Warming on the Ocean

The ocean is the largest water area that occupies 70% of the surface of the earth. Thousands of known species and unknown species breed in this huge pool, creating an enormous number of food webs and environments. Over the centuries the sea has offered us seafood, salt, minerals, transportation, even even leisure. In return, however, humans drained toxic chemicals, thrown garbage, excessively captured fish and marine organisms, and destroyed the environment and geography. In addition, because of the increasing carbon consumption of human burning fossil fuels, the temperature of the earth and the sea is very hot.

Ocean Global Warming Global warming is one of the biggest environmental problems not only in the ocean but also in the entire Earth. Global warming is caused by greenhouse gases such as carbon dioxide and methane and forms an invisible enclosure around the earth. An atmosphere with a cover or greenhouse gases illuminates the sun, but reflected light can not return to outer space. This is called the greenhouse effect. Ice caps are melting and global warming is great

The impact of global warming on the oceans provides information on the various effects of global warming on the ocean. Global warming affects sea surface, coastline, ocean acidification, ocean current, seawater, sea surface temperature, tidal, ocean floor, weather, and may cause changes in marine biogeochemistry, all of which are related to social activities It affects. The consensus in many studies on coastal tidal measurements is that over the past century the sea level has risen at an average rate of 1 to 2 mm / year, reflecting the net heat entering the land and sea. A corresponding study based on a satellite altimeter showed that this rate increased to nearly 3 mm / year during a more complete surveillance over the past 20 years. According to recent literature review, 30% of sea level rise since 1993 is due to thermal expansion, 55% is due to melting of continental ice, both due to the global temperature rise.

Sea level rise is one of the most serious effects of global warming. In the 20th century, the sea level increases by an average of 4 to 8 inches (10 to 20 cm), which is ten times the average speed of the past 3,000 years 55 The increase in water is both influence of global warming is. Due to geographical geology and human factors, the impact of global sea level rise is increasing in some places. For example, since 1938, about one third of the Swamp of the Blackwater National Wildlife Sanctuary in Chesapeake Bay in the eastern United States is flooded.