Sea Levels Dropping Off....

Discussion in 'Environment' started by Sinatra, Jul 23, 2009.

  1. Sinatra
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    Sinatra Senior Member

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    Great article that exposes the fallacy of increasing sea levels forwarded by such dubious global warmer proponents as Hansen etc.

    Seems the more recent satellite data was incorrectly combined with the longer term tidal measurement data to come up with a formula that appeared to show rising global sea levels.

    This process was of course flawed - likely on purpose, and the following clearly explains how.

    The earth's sea levels are no rising at a dangerous pace - far from it. The rising and decreasing levels are all within normal historical patterns.

    Another global warming myth dispatched yet again...


    World Climate Report » Sea Level Rise: An Update Shows a Slowdown
     
  2. Alan Partridge
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    Alan Partridge Not an Obamatron

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    no, they're rising, your article even admits as much.

    "First, rest assured that sea level rise this century will not come anywhere close to the extreme projections (10-20 feet) hawked by Hansen. There is simply no empirical evidence or model forecasts that support such claims. In fact, the more folks study the issue, the more support builds for modest sea level rise—something on the order or a foot or two by century’s end—an amount ten times less than alarmist forecasts."
     
    • Thank You! Thank You! x 1
  3. Neser Boha
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    Neser Boha upgrade your gray matter

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    :clap2: :rofl:

    Good smackdown :D
     
  4. Sinatra
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    Sinatra Senior Member

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    Point of clarification for those attempting detraction...

    :eusa_whistle:
     
  5. Neser Boha
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    Neser Boha upgrade your gray matter

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    Your main headline is still grossly misleading, bro. Just sayin'...
     
  6. Sinatra
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    Sinatra Senior Member

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    Perhaps you would do well to actually read the article?

    Please note, "...they seem to fit squarely into the pattern of long-term fluctuations. And furthermore, they have been declining." Also please note the third graph to said article as it directly pertains to the above quote.

    Thank you!
     
    Last edited: Jul 23, 2009
  7. Alan Partridge
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    Alan Partridge Not an Obamatron

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    you seem to think that all people who believe global warming is occuring are all using the kook playbook.

    I doubted the high end numbers, especially if Al Gore is saying it. But sea levels are rising, fact.
     
  8. Old Rocks
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    Old Rocks Diamond Member

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    Sea levels rising twice as fast as predicted

    Melting ice sheets in Greenland and Antarctica force UN scientists to issue dramatic warning

    By Michael McCarthy, Environment Editor


    Wednesday, 11 March 2009


    AFP/Getty

    Floods in Bangladesh last year, where coastal areas are already affected

    More pictures
    Sea levels are predicted to rise twice as fast as was forecast by the United Nations only two years ago, threatening hundreds of millions of people with catastrophe, scientists said yesterday in a dramatic new warning about climate change. Rapidly melting ice sheets in Greenland and Antarctica are likely to push up sea levels by a metre or more by 2100, swamping coastal cities and obliterating the living space of 600 million people who live in deltas, low-lying areas and small island states.


    Low-lying countries with increasing populations, such as Bangladesh, Burma and Egypt, could see large parts of their surface areas vanish. Experts in Bangladesh estimate that a one-metre rise in sea levels would swamp 17 per cent of the country's land mass. Pacific islands such as Tuvalu, where 12,000 people live just a few feet above sea level, and the Maldives, would face complete obliteration.

    Even Britain could face real challenges in lower-lying areas along the east coast, from Lincolnshire to the Thames estuary, with a much greater risk of catastrophic "storm surges" such as the great flood of 1953 that killed 307 people.

    Sea levels rising twice as fast as predicted - Climate Change, Environment - The Independent
     
  9. Old Rocks
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    Old Rocks Diamond Member

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    The Blue Line – Chip Fletcher

    In Hawaii, sea-level rise resulting from global warming is a particular concern. Riding on the rising water are high waves, hurricanes, and tsunami that will be able to penetrate further inland with every fraction of rising tide. In addition, the coastal groundwater table is likely to crop out above ground level and lead to widespread flooding. The physical effects of sea-level rise fall into 5 categories. These are:

    Marine inundation of low-lying developed areas including coastal roads,
    Erosion of beaches and bluffs,
    Salt intrusion into aquifers and surface ecosystems,
    Higher water tables, and
    Increased flooding and storm damage due to heavy rainfall.
    Assessing the impact of these on Hawaii requires identifying a likely global sea-level scenario. Global sea level is principally the product to two phenomena: 1) melting ice on Antarctica, Greenland, and among alpine glaciers, and 2) thermal expansion of seawater due to surface warming. The first detailed observations of Antarctic ice reveal net melting; the melting rate on Greenland has increased 250% in the past decade; there is widespread retreat and thinning of mountain glaciers, and together these major ice sources contribute about 2.0 mm/yr to global sea-level rise. Thermal expansion is calculated from the amount of heat stored in the upper ocean as revealed by increased water temperature. While changes in water temperature over past decades have been difficult to measure, studies indicate that thermal expansion increased from an average rate of about 0.36 mm/yr in past decades, to 1.6 mm/yr in the most recent decade. The total contributions to global sea level (~3.6 mm/yr) agree remarkably well with the observed rate of rise (~3.4 mm/yr) as measured by satellites.
    The Intergovernmental Panel on Climate Change has predicted future sea-level changes to the year 2100 in the range 18 to 58 cm. However, these projections do not include a component based on ice behavior, and hence, are widely considered to underestimate the potential for flooding. Two studies published in 2007, both by German climate researcher Stefan Rahmstorf and colleagues, indicate a more likely scenario of future climate change and sea-level rise. In one study, Rahmstorf compared projections of future atmospheric warming and sea-level rise made in 1990 by the IPCC to observations in 2006. Results indicate that the climate system, in particular sea level, may be responding to global warming more quickly than models specify. Observed temperature changes are in the upper part of the range projected by the IPCC and sea level has been rising faster than even the extreme scenarios projected by the models. Notably, Rahmstorf found that the rate of sea level rise for the past 20 years is 25% faster than the rate of rise in any 20-year period in the preceding 115 years. In his second paper of 2007, Rahmstorf estimates 21st century sea-level change on the empirical relationship between 20th century temperature changes and sea-level changes. The study establishes a proportionality constant of 3.3 cm of sea-level rise per decade per °C of global temperature warming. When applied to future warming scenarios of the Intergovernmental Panel on Climate Change, this relationship results in a projected sea-level rise in 2100 of 0.5 to 1.4 m above the 1990 level. On the basis of Rahmstorf’s research, and the documented accelerations in melting of both the Greenland and Antarctic ice sheets, it seems highly likely that a sea level of approximately 1 m above present could be reached by the end of the 21st century.

    Sea Level Rise Website
     
  10. KittenKoder
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    KittenKoder Senior Member

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    See? Someone posts proof that you are wrong, instead of showing your work in order to disprove it, you environuts just recite the same falsified reports and declare victory, and you wonder why we just sass you now.
     

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