Study shows sea level rise of less than 7 inches per century with no acceleration
http://hockeyschtick.blogspot.com/2012/0...
Sea level rise is normal, virtually stable sea level conditions:
http://antigreen.blogspot.com/2013/07/th...
Peer-Reviewed Study: No unusual Sea Level rise for Bangladesh
http://multi-science.metapress.com/conte...
There is also no unusual Sea Level rise for the Maldives
http://www.marklynas.org/2012/04/where-s...
Peer-Reviewed Study: Shows no sign of any sea-level rise in the Maldives
http://www.ingentaconnect.com/content/ro...
Antarctic ice shelves not melting at all, new field data show (June 2012)
http://www.theregister.co.uk/2012/06/25/...
Arctic Sea Ice is Not Melting - Dark Purple is 100% sea ice
http://climaterealists.com/index.php?id=...
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Apart from melting ice and thermal expansion, there is another which not many know about.
Man pumping up ground water from aquifers, it is estimated that from 1900 to 2008, 4500 cubic kilometers of water have been pumped which ultimately ends up in the sea.
That amounts to 1.26 centimetres of the overall rise in sea levels of 17 cm in the same period (Geophysical Research Letters, DOI: 10.1029/2011gl048604).
C.Realist has the right reasons but the wrong portions. Currently, about 70% of the rise is from thermal expansion (the oceans are getting warmer) and about 30% from melting ice. In the future, as Antarctica begins to melt and melting on Greenland accelerates, melting ice will be about 75% of the cause.
The link is to a story on The Weather Channel about the most recently published research.
Warmer temperatures casuse water to also increase in temperature ss water warms and cools it expands and contracts; As ice melts the amount of water contained as ice on land surfaces changes over time and causes sea levels to rise both are direct causes of global warming and global temperature change..
The third reason that sea levels may change is that the earth crust is constantly moving. The Earth’s surface is dynamic and can move vertically.
There is no sea level rise, it's a lie
A rise in global temperature causes a lower albedo effect and that's why the glaciers are melting.
"Causes of sea level rise
Before describing the major factors contributing to climate change, it should be understood that the melting back of sea ice (e.g., in the Arctic and the floating ice shelves) will not directly contribute to sea level rise because this ice is already floating on the ocean (and so already displacing its mass of water). However, the melting back of this ice can lead to indirect contributions on sea level. For example, the melting back of sea ice leads to a reduction in albedo (surface reflectivity) and allows for greater absorption of solar radiation. More solar radiation being absorbed will accelerate warming, thus increasing the melting back of snow and ice on land. In addition, ongoing break up of the floating ice shelves will allow a faster flow of ice on land into the oceans, thereby providing an additional contribution to sea level rise.
There are three major processes by which human-induced climate change directly affects sea level. First, like air and other fluids, water expands as its temperature increases (i.e., its density goes down as temperature rises). As climate change increases ocean temperatures, initially at the surface and over centuries at depth, the water will expand, contributing to sea level rise due to thermal expansion. Thermal expansion is likely to have contributed to about 2.5 cm of sea level rise during the second half of the 20th century (11), with the rate of rise due to this term having increased to about 3 times this rate during the early 21st century. Because this contribution to sea level rise depends mainly on the temperature of the ocean, projecting the increase in ocean temperatures provides an estimate of future growth. Over the 21st century, the IPCC’s Fourth Assessment projected that thermal expansion will lead to sea level rise of about 17-28 cm (plus or minus about 50%). That this estimate is less than would occur from a linear extrapolation of the rate during the first decade of the 21st century when all model projections indicate ongoing ocean warming has led to concerns that the IPCC estimate may be too low.
A second, and less certain, contributor to sea level rise is the melting of glaciers and ice caps. IPCC’s Fourth Assessment estimated that, during the second half of the 20th century, melting of mountain glaciers and ice caps led to about a 2.5 cm rise in sea level. This is a higher amount than was caused by the loss of ice from the Greenland and Antarctic ice sheets, which added about 1 cm to the sea level. For the 21st century, IPCC’s Fourth Assessment projected that melting of glaciers and ice caps will contribute roughly 10-12 cm to sea level rise, with an uncertainty of roughly a third. This would represent a melting of roughly a quarter of the total amount of ice tied up in mountain glaciers and small ice caps.
The third process that can cause sea level to rise is the loss of ice mass from Greenland and Antarctica. Were all the ice on Greenland to melt, a process that would likely take many centuries to millennia, sea level would go up by roughly 7 meters. The West Antarctic ice sheet holds about 5 m of sea level equivalent and is particularly vulnerable as much of it is grounded below sea level; the East Antarctic ice sheet, which is less vulnerable, holds about 55 m of sea level equivalent. The models used to estimate potential changes in ice mass are, so far, only capable of estimating the changes in mass due to surface processes leading to evaporation/sublimation and snowfall and conversion to ice.
In summarizing the results of model simulations for the 21st century, IPCC reported that the central estimates projected that Greenland would induce about a 2 cm rise in sea level whereas Antarctica would, because of increased snow accumulation, induce about a 2 cm fall in sea level. That there are likely to be problems with these estimates, however, has become clear with recent satellite observations, which indicate that both Greenland and Antarctica are currently losing ice mass, and we are only in the first decade of a century that is projected to become much warmer over its course." :) :)
Ice melt and, to a very small extent, thermal expansion. Both are due to the carbon dioxide which we are putting into our atmosphere by burning fossil fuels.
I have found an article describing reasons of sea level rise. I think the reasons they described is not complete! Can you my friends help me to know more about the reasons behind sea level rise? I found that article at http://www.energy-physics.com/2013/07/Sea-Level-Rise.html
