Sea and ice, our best damaged friends.

The Intergovernmental Professional Group of Climate Change from United Nations claimed that in XX century, the sea level rise 1,7 millimetres. In XXI century they are thinking that sea will rise lower than half metre comparing to its level in the 90’s. The information of Al Gore, ex vice president of USA, in which he said that sea will rise six metres in a not far future, predictions from IPCC seem as been also biased, according to studies from Harvard University. For this reason, this last group have just decided to start a new study with new methods.

In the last years the sea level has risen more than experts thought. This occurs due to the water warms at the same time it expands and mainly because of ice melt on the ground. Harvard group is studying all geographic factors which make sea rise, analysing satellite and tide data. This new study is a great advance for different authors, because lots of data show us how the sea were in the past and scientific community need updated information. From the last glacier period, sea increase 120 metres, until sea kept two millenniums ago. From this moment sea were in calm, until industrial revolution arrived and due to CO2, sea started to rise again.

Video explaining the ice melting.

ORIGINAL ARTICLE

In the original article is better explained why the information about raise of the sea level is unclear: By employing different methods, have concluded that GMSL (Global Mean Sea Level) rose over the twentieth century at a mean rate of 1.6 to 1.9 millimetres per year. Efforts to account for this rate by summing estimates of individual contributions from glacier and ice-sheet mass loss, ocean thermal expansion, and changes in land water storage fall significantly short in the period before 1990. The failure to close the budget of GMSL during this period has led to suggestions that several contributions may have been systematically underestimated. However, the extent to which the limitations of tide gauge analyses have affected estimates of the GMSL rate of change is unclear.

PERSONAL OPINION

I have chosen this article because environment worries me. I think is our duty look after the Earth. In the article below you can see how human race is the responsible of the ice melt and for consequence, it’s also responsible of the sea level rise. It’s important to learn how control our activities, all of them we do and that causes damages for the environment, but also for all the animals and plants species that used to lived in this areas before we, the Human race, arrived.

ORIGINAL ARTICLE

ARTICLE

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2 Responses to Sea and ice, our best damaged friends.

  1. >> Check your link to “El Pais”; it’s not working

    >> IPCC is a famous acronym, you must not modify its meaning (Intergovernmental Panel on Climate Change, it’s on the Abstract; you have the link to the Fifth Assessment Report in Aula Virtual since the very first day of the present academic year!)
    >> More on acronyms: you should explain what GMSL stands for, at least the first time you use it in your post.

    >> You reproduce this statement from El Pais: “IPCC estimates 120 m rise in mean sea level since the last glacial period”. Where did they find that nonsense?, as can be read in the corresponding report (Fifth Assessment -The Physical Basis, WG1-AR5, Chapter 13, p. 1146:
    (sea level history of the last 7000 years records indicate that from ~7 to 3 ka, GMSL) likely rose 2 to 3 m to near present-day levels. Well, with a 3 m rise, the shore line could move forward 120 meters, but that depends on the particular morphology of every coastal location.

    >> The title of your video is quite alarmist. It comes from BBC News, under a quite different headline “Antarctic ice melting faster”. In fact, after mentioned the 70 m potencial rise, the British scientist says “but we don’t think it’ll occur anytime in the next few centuries”

    >> Images.- If you insert a link in your images, it should lead to a best quality picture. There’s open access to them in this article. You can even find the whole paper in pdf here, where I’ve extracted this plot from. You can link to it in your post.

  2. I have just changed picture’s quality, I have wrotten acronyms meaning and I have modified the article link. It already works.

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