Environment Technology

Environment Technology

A Global Catastrophe is Coming?

Posted by admin on April 15, 2013 in Global Warming with 11 Comments


It is estimated that about 2100 the average temperature of earth’s surface will be between 1.5 and 6 grades higher than in 1980. ¿who are the responsibles and what can we do?

Our planet is getting warmer: that’s a reality. The last ten years have been the hottest; scientifics have announced that in future it would be warmer. And, as always, human beings are the main responsibles: we exert a direct impact over warming process, also known as “greenhouse effect”.

Greenhouse effect is an increase of greenhouse gases concentration: carbon dioxide (CO2), chlorineflourinecarbonate (CFC), methane (CH4), nitrogen oxide (N2O) and troposphere ozone.

In small concentrations these gases are necessary for our survival. Solar energy come in through them, reaches the earth and return as infrared energy. At that moment greenhouse gases catch them and keep the infrared radiation heat, as a greenhouse.

But in major quantities, the main consequence of greenhouse effect is the atmosphere Global Warming.

Why?…because contaminant gases (or greenhouse), as carbon dioxide, provoke that solar energy keep trapped in atmosphere. And it takes only a slight modification of temperature to break the nature equilibrium.

Sea water will evaporate, in other parts will be torrential rain, floods, hurricanes, droughts, heat waves and freeze…among other natural disasters.

An important concern

According to different scientific studies, supported by ONU, it is estimated that in 2100m average temperature of earth will be between 1,5 and 6 grades higher than in 1980. Temperatures are increasing at global scale, and the recorded 15 hottest years have been since 1980.

This is the main concern of scientifics, because besides all the aforementioned disasters it could be famine and epidemic, ice floes melting, flora and fauna disappearing and Caribbean Island flooding.

What is worse is that we are “collaborating” with global warming by using fossil fuel (coal, oil and its derivates as paraffin, liquefied gas and benzine), allowing industrial contamination, among others, and forests and wet lands destruction.

It is believed that if temperature continues to elevate, global warming is going to uneven distributed. Continental zones are going to be hottest than sea zones.

Henry C. Silva
http://www.articlesbase.com/environment-articles/a-global-catastrophe-is-coming-105605.html

« previous post

Educating People About Alterna...

Perhaps one of the most effective ways through which young people can learn about alternat...

next post »

Earth 4 Energy Review – ....

You can convert your home into solar power. By using solar system to generate electricity ...

  1. BradleyApril 15, 2013 - 5:48 am #1

    Is the terraforming of mars a feasible idea?
    Is the terraforming of mars a feasible idea in the event of a coming global catastrophe or mass overpopulation of earth, or are there certain hurdles that may prove the idea impossible E.g. A small marsian mass, making mars incapable of holding an atmosphere? And if so, why does mars’ surface look as though it has been shaped by water flow?

  2. BobbyApril 15, 2013 - 10:50 am #2

    "Cosmos" by Carl Sagan
    1982

    Episode: "Blues for a Red Planet"

    Available on Netflix
    Check it out.
    References :

  3. Donut TimApril 15, 2013 - 10:52 am #3

    No, sorry. Mars would be the most promising candidate for colonization but unfortunately, it is not possible. (Apologies to science fiction fans and super-optimists)

    The minimum amount of atmospheric pressure that people need to live is about 1/2 that of normal Earth sea-level pressure. The amount of air needed to be delivered to Mars in order to have that pressure is about 2,200,000,000,000,000 U.S. tons, a little over 1/3 of all the air on Earth. (Because of the weak gravitational pull on the surface of Mars, a thicker layer of air is needed than on Earth to attain the same pressure.)

    ► The gravitational pull on Mars is so little that if enough air were to be put in place (perhaps from comets or debris from Saturn’s rings), it would leak off into space within a short time.

    Another problem of the relatively weak gravitational pull; humans cannot tolerate it for prolonged periods of time.
    .
    References :

  4. AcetekApril 15, 2013 - 10:54 am #4

    Contrary to what doughnut tim said it is feasible. Just not with current technology
    References :
    http://www.howstuffworks.com/terraforming.htm
    http://www.youtube.com/watch?v=O5k0MtlWPOs
    http://quest.nasa.gov/mars/background/terra.html

  5. PaulaApril 15, 2013 - 10:56 am #5

    You surmise correctly…

    Mars does not have enough mass / gravity to hold an atmosphere.
    It is only 11% the mass of earth.
    So no amount of terra forming will make it livable.

    It would take the addition of 4 or 5 Mars sized bodies. That much material does not exist in our solar system. All the asteroids combined are only a fraction of the mass of Mars.

    There are no water features on Mars.
    Valleys and deltas that are seen are thought to be caused by frozen CO2 sublimating to gas then rushing downslope.
    The CO2 is probably the result of comet collisions.

    The temperature of Mars, at -60C keeps water frozen solid.
    But CO2 sublimes at -57C so it can be in both solid and gaseous states.
    References :

  6. BillApril 15, 2013 - 10:58 am #6

    Terraforming is concept invented by Science Fiction Writers and is not possible in the Real world.
    References :

  7. Bob D1April 15, 2013 - 11:00 am #7

    ("Is the terraforming of mars a feasible idea?")
    ————————————–

    NASA seems to think so, and they are the ones with the "really" smart people.

    Best regards
    References :
    self

  8. SteveApril 15, 2013 - 11:02 am #8

    Of course it is. Just not with today’s technology.

    Given enough time we’ll find a way to do it. We humans are very very persistent. I don’t see why not.
    References :

  9. Brigalow BlokeApril 15, 2013 - 11:04 am #9

    No.

    The more rational of the optimists talk of "areoforming" Mars, which according to some calculations might be started by raising the global average temperature of the planet by about 3 degrees centigrade. The claim is that the temperature at the poles is just below that where carbon dioxide is stable as a solid,

    Raising the temperature by 3 degrees or so would cause the solid CO2 to sublime into gas, which would then make the atmosphere considerably thicker and the greenhouse effect would raise the temperature still further. This in turn could cause ice at mid latitudes to melt at least during the Martian summers, releasing water vapor into the atmosphere and contributing to the greenhouse effect. Liquid water would also drive out carbon dioxide and other gases adsorbed in Martian soil, again adding to the effect.

    This should result in a planet with a much warmer climate, with liquid water on the surface but with a carbon dioxide atmosphere far more dense than at present. While the atmosphere would not be breathable, it would give far greater protection against cosmic and solar radiation since there is already a thin ozone layer on Mars from the breakdown of CO2 into oxygen under solar radiation. Obviously a thicker atmosphere would also protect against small meteoric material too.

    For colonists on Mars, CO2 and water are easily turned into oxygen, methane, hydrogen, carbon monoxide etc using utterly reliable chemical reactions used since the 1800s as long as there is a source of energy. Tanks of algae in glass sheds would also work. Some plants from alpine regions of Earth may then survive out in the open.

    The difficulty is to raise the global temperature that 3 degrees or so. Various schemes have been proposed, some of them perhaps more realistic than others.
    References :

  10. R MOOREApril 15, 2013 - 11:06 am #10

    The thickening of the Martian atmosphere would be the easiest part.
    Build factories that can produce loads of carbon dioxide as a by product.
    The surface of Mars is practically a dessert of ferrous oxide.
    Vegetation would be the next stage to convert CO2 to Oxygen.
    This all could maybe take 1,000′s of years and sack loads of money, but the result would be a warm wet planet.
    Gravity is another problem because of its mass and the atmosphere could be swiftly stripped away by the solar wind.
    The only way is to increase this mass and that wouldn’t be easy, but feasible.
    A liquid core would produce a magnetic field which would also help.
    Maybe Nuclear heat would work.
    It would also make Mars geologically active and add to its atmosphere.
    References :
    Feasible.

  11. oklatonolaApril 15, 2013 - 11:08 am #11

    It’s a feasible idea, BUT it would take a VERY long time to make all of Mars similar to like living in Alaska, minus the mosquitoes. The biggest hurdle would how to create a GLOBAL magnetic field AGAIN for Mars. Mars outer core may not have completely crystallized yet an may still be partially liquid but it isn’t liquid enough to create a magnetic dynamo effect even though Mar’s rotates almost as fast the Earth does. The global magnetic field is the biggest hurdle. Mar’s DID have a global magnetic field AND an atmosphere that was thick enough to keep water liquid on the surface. Water is STILL liquid on the surface of Mars when the ground is warm enough, but the water has a layer of dust providing the pressure that keep the water from evaporating when it flows downhill

    Read Larry Niven’s "Red Mars," Green Mars," and "Blue Mars," trilogy. There may be a fourth book now that is part of the same series now. Yes, they are science fiction, but they are solidly based in science fact.
    References :

Leave a Reply

No trackbacks yet.

No post with similar tags yet.

Posts in similar categories