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Global Warming

  • Date Submitted: 06/27/2016 09:58 AM
  • Flesch-Kincaid Score: 45.4 
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Effects of global warming on oceans

Waves on an ocean coast

Animated map exhibiting the world's oceanic waters. A continuous body of water encircling the Earth, the World Ocean is divided into a number of principal areas with relatively free interchange among them. Five oceanic divisions are usually reckoned: Pacific, Atlantic, Indian, Arctic, and Southern; the last two listed are sometimes consolidated into the first three.

Global mean land-ocean temperature change from 1880–2011, relative to the 1951–1980 mean. The black line is the annual mean and the red line is the 5-year running mean. The green bars show uncertainty estimates. Source: NASA GISS

Energy (heat) added to various parts of the climate system due to global warming.
Global warming can affect sea levels, coastlines, ocean acidification, ocean currents, seawater, sea surface temperatures,[1] tides, the sea floor, weather, and trigger several changes in ocean bio-geochemistry; all of these affect the functioning of a society.[2]

Sea level Edit
Coasts Edit
There are a number of factors affecting rising sea levels, including the thermal expansion of seawater, the melting of glaciers and ice sheets on land, and possibly human changes to groundwater storage.

The consensus of many studies of coastal tide gauge records is that during the past century sea level has risen worldwide at an average rate of 1–2 mm/yr reflecting a net flux of heat into the surface of the land and oceans. Corresponding studies based on satellite altimetry shows that this rate has increased to closer to 3 mm/yr during the more completely monitored past 20 years.[3] A recent review of the literature [4] suggests that 30% of the sea level rise since 1993 is due to thermal expansion and 55% due to continental ice melt, both resulting from warming global temperatures. In another study,[5] results estimate the heat content of the ocean in the upper 700 meters has increased significantly from 1955-2010. Observations of...

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