Climate, melting ice and sea level

Warming and Climate Change: causes, consequences, analysis ... Debate on CO2 and other greenhouse gas.
Ahmed
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Re: Climate, melting ice and sea level




by Ahmed » 14/07/16, 11:25

Jean François, you write:
Will there be a solution to this in your opinion?

Everyone agrees to fight these climate problems, but no one is determined to do it ... unless it could provide an opportunity to revive the economy, growth, profit, that is- to say the causes of these problems.
In reality, this observation of helplessness does not point the finger at the actors' responsibility or their cynicism, but their unconscious submission to a systemic determinism: as long as the simulacra of negotiations take place within this framework, it will be futile to expect Something. These ritual masses are only there as cathartic spectacles to maintain the confusion in the public opinion.
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Re: Climate, melting ice and sea level




by Christophe » 14/07/16, 11:59

On profit, there is geo engineering all the same: climate-change-co2 / geoengineering-cool-the-earth-against-the-warming-t2770.html

I think we will get there sooner or later (certainly in a hurry ... in a few decades) ... and it's a safe bet that the markets will be taken by the biggest current CO2 emitters ... and presto, the circle will be complete!

Otherwise, AMHA, a visionary humanity would anticipate the future cost * of global warming (provided that it is quantifiable ... not obvious) to spread the bill over a long period (a kind of advance credit), for example, put 1 % of world GDP in the (real **) fight against global warming ...

* in some cases the warming can be economically beneficial ... for example, it has already allowed the liberation of the passage of the great west ... and the Beech trees grow 77% faster (to what seems changement-climatique-co2/10-ans-pour-sauver-le-climat-t2860-40.html#p307144 )

** not completely ineffective stuff in the style of CO2 exchanges
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Re: Climate, melting ice and sea level




by Christophe » 14/07/16, 12:31

We should perhaps be inspired by the "economic model" of nuclear disasters to anticipate that of global warming: energies-fossil-nuclear / Fukushima-Daiichi-the-status-one-year-after-asn-and-irsn-t11577.html
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Re: Climate, melting ice and sea level




by Ahmed » 14/07/16, 12:39

... for example, putting 1% of world GDP into the (real **) fight against global warming ...

It is the same logical error as wanting to levy taxes on financial transactions to reduce social inequalities; if one wants to reason by the absurd, one would have to wish for an enormous increase in the causes in order to be able to more effectively remedy the consequences !!! :P
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Re: Climate, melting ice and sea level




by Janic » 15/07/16, 08:13

It is the same logical error as wanting to levy taxes on financial transactions to reduce social inequalities; if one wants to reason by the absurd, one would have to wish for an enormous increase in the causes in order to be able to more effectively remedy the consequences !!!
this is already the case: right? From memory, the first companies of depollution, of a certain scale, were owned by those even which caused these pollutions (to gain on the two tables what more juicy!)
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Re: Climate, melting ice and sea level




by Ahmed » 15/07/16, 11:40

You are absolutely right: I was only talking about the particular case of a precise reasoning. But it is a very widespread operating mode, since each "improvement" makes bearable a development of what was the cause of what is mitigated: thus, less polluting engines make possible a more intense automobile circulation, "natural reserves" compensatory, allow to continue destroying the rest of nature, effective psychotropic drugs ensure the resignation of men to the absurdity of the conditions of their existence ...
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Re: Climate, melting ice and sea level




by moinsdewatt » 24/09/16, 13:56

Greenland ice melts faster than scientists thought

LES ECHOS The 23/09/2016

VIDEO The deformations of the rocky mantle located under the earth's crust had not been taken into account by scientists, distorting their calculation.

Greenland's ice is melting faster than expected. Until recently, researchers thought that Greenland had lost 2.500 trillion tonnes of ice between 2003 and 2013. But this calculation was distorted by the fact that the deformations of the rocky mantle located under the earth's crust had not been taken into account. account.

Greenland actually lost nearly 2.700 trillion tonnes of ice over the same period, 7,6 percent more, according to a new calculation by scientists whose work appeared in the American journal Science Advances this week.

New understanding


"This is a fairly modest correction that does not change our estimate of overall ice mass loss in Greenland, but this finding does change our understanding of where losses occur in the ice cap," comments geoscience professor Michael Bevis of Ohio State University, co-author of this study.

The Earth's crust in this part of the globe is slowly moving to the northwest. 40 million years ago, part of Greenland passed over a column of very hot magma which partially melted the rocks of the Earth's mantle which is today under Iceland.

During the last ice age, the Greenland ice cap was much larger than today, slowly sinking under its enormous mass the earth's crust in the mantle softened by the column of very hot magma below.

Two parameters

When significant portions of the ice melted at the end of the Ice Age, the weight of the ice cap decreased significantly, raising the Earth's crust which continues to rise today, while the mantle rocks continue to move under Greenland.

When the satellites of Nasa Grace (Gravity Recovery and Climate Experiment) began to measure the gravitational field around the globe in 2002, scientists knew that they had to distinguish the flow of rocks under the earth's crust from changes in the ice mass. covering them. But the instruments of these satellites cannot differentiate between the mass of ice and that of the rocks under the earth's crust, these researchers point out. It was therefore necessary that the mathematical model correctly takes these two parameters into account.

http://www.lesechos.fr/idees-debats/sci ... 029780.php

The video is disappointing, does nothing at all to the text. You can zap it.
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Re: Climate, melting ice and sea level




by Earthquake » 21/02/17, 16:44

Ahmed wrote:... thus, less polluting engines make possible a more intense automobile circulation, compensatory "natural reserves", make it possible to continue to destroy the rest of nature, effective psychotropic drugs ensure the resignation of men to the absurdity of the conditions of their existence ...


That's quite right. The system develops all its ingenuity to allow us to continue with a light heart and not change anything.

But behind, testimonies are increasing to indicate that problems such as global warming, melting ice and rising sea levels are racing. The conclusion to be drawn is double-sided:

- not only have we not yet done anything serious in the face of these problems;
- but even if we took it seriously today, we have already given them enough potential to increase tenfold before we can notice the slightest change in the trends observed!

And these trends are heavy. The only way to stop everything would be to remove between a third and a half of the atmospheric CO2 there right away, which is what we have emitted in the last 100 or 150 years.

Thus, the Antarctic that we have so far wanted to believe indifferent to global warming suddenly shows that it wants to participate in the celebration (http://www.mediaterre.org/actu,20170220102439,1.html; https://www.letemps.ch/sciences/2017/01/30/un-iceberg-geant-se-brise-fonte-lantarctique-saccelere). All the "alpine" glaciers in the world are shrinking, and in the Alps, those that flow less than 4000 meters are preparing to bow out (http://www.futura-sciences.com/planete/actualites/climatologie-fonte-glaciers-alpins-accelere-depuis-2003-35124/; http://ici.radio-canada.ca/nouvelle/101 ... de-vitesse). Greenland will increasingly deserve its name of green land (http://www.francetvinfo.fr/meteo/climat/en-images-la-fonte-de-la-calotte-glaciaire-du-groenland-comme-vous-ne-l-avez-jamais-vue_2061703.html; http://www.lepoint.fr/environnement/fon ... _1927.php; http://www.ledevoir.com/environnement/a ... -groenland).

Everyone will understand what they want, but "melting ten times faster than expected" means above all that all the officially accepted forecasts of melting ice and rising sea levels, caught between political, scientific, media and psychological, are much, much too careful! And since everyone remains cautious, even the most alarmist forecasts of the moment (http://www.lemonde.fr/planete/article/2 ... _3244.html) are certainly still far below the looming reality.

The level of the oceans and seas will apparently rise faster and higher than predicted, and the phenomenon of melting is positive feedback (the faster it melts, the faster it will melt; http://www.insu.cnrs.fr/node/4895 and so many others).

Much faster and much higher ...

And if you want to believe that this will only concern those who live on the edge of the big blue, rather expect that most have the idea of ​​migrating and come to see if there is room and food for them near you.
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Re: Climate, melting ice and sea level




by izentrop » 21/02/17, 17:22

Terremoto wrote:The only way to stop everything would be to remove between a third and a half of the atmospheric CO2 there right away
Since the real lung of the planet cannot adapt to such rapid warming, we cannot already count on it http://www.futura-sciences.com/planete/ ... ans-49735/
This also has consequences for the rest of the food chain. Thus, the warming of the Antarctic Ocean has already caused a decrease in the existing krill and there is a high probability that the decrease in the populations of very many seabirds and seals is linked to it.
http://www.climatechallenge.be/fr/des-i ... anger.aspx
Not just overfishing
In ten years in the Mediterranean, the biomass of sardines has been divided by three, going from over 200 tonnes to less than 000 tonnes. These same proportions are found in anchovies. But where have these little fish - also called "small pelagics" - gone?
https://wwz.ifremer.fr/mediterranee/l-a ... s-sardines
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Re: Climate, melting ice and sea level




by Earthquake » 27/03/17, 16:35

Records continue to accumulate in the Arctic
http://journalmetro.com/monde/1108710/les-records-continuent-de-saccumuler-dans-larctique/

As well as in Antarctica and elsewhere
Climate: Numerous records shattered in 2016 with global consequences
http://www.mediaterre.org/actu,20170322095222,1.html

For almost 30 years that we have been worried about global warming and that afterwards we have undoubtedly established the role of anthropic activities in this warming, there is still no change in trends, just accelerations.

As long as the good people are content to wait for governments to do the job, that will not change!

About change, Michael Moore, the author for example of Bowling for Columbine, proposed to the Americans an action plan to stop Trump, plan which applies perfectly to all the causes, therefore also to that which concerns us here :
10-step action plan to stop Donald Trump
http://quebec.huffingtonpost.ca/michael ... 86884.html

Let's all act together, and each in our hometown!

Otherwise, sleep easy, good people!
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