Ocean News

Discussion in 'All Things Boats & Boating' started by ImaginaryNumber, Oct 8, 2015.

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  1. SamSam
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    SamSam Senior Member

    You said before that you wear a white coat, so I assumed you were part of the "scientific community". But here you seem to siding with those who distrust the educated. You accuse me of fomenting conspiracies, and yet your whole foundational base is that almost 100% of the "scientific community" is in a co-conspiracy with the worlds deep state politicians to steal your tax dollars just to keep themselves in a job.
    Did you mean one of those white coats that have very long arms?
     
  2. SamSam
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    SamSam Senior Member

    Good news for gonzo and those who don't trust the "so called "scientific community" ". Nasa's Carbon Monitoring System has been shut down. Time to fire up the tiki torches and celebrate a return to the good old times of rampant ignorance, only this time it will be willful ignorance. Golly gee, one month the earth passes a milestone of above 400 ppm of co2, the next month the only system available to accurately track carbon emissions is shut down. I know politics aren't allowed here, but seriously
     
  3. rwatson
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    rwatson Senior Member

    Yeah, its not good, but as I understand it, its only the worldwide "other country" monitoring division.

    That makes some sort of economic sense since the USA withdrew from the Paris agreement anyway.

    Not that it will make any difference in the long run. There is no stopping this emissions juggernaut. The little bit of carbon saved by alternate power looks like a campfire next to a munitions factory explosion when compared to oil and coal use. Its just a token attempt, because civilisation would have to stop in order to prevent the upcoming disaster.

    Maybe a few more disastrous winters, and severe drought in the crop growing areas of the world will jerk a bit of attention from the unmotivated masses.

    For me, I would be moving my assets out of low lying coastal areas, stocking up on necessities for when the supply chain hiccups and making sure that the local water supply is as reliable as it can be. I note Australia is down to 25 days of fuel reserves, as we import all our liquid fuels.

    We are in for a major earth changing epoch, and the war over resources has started with Syria, and will continue with China versus the world over trade and influence.
     
  4. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    Apparently the science community will still have some CO2-monitoring capabilities, in spite of the loss of the CMS.

    NASA program to track greenhouse gas is canceled (Update) | PHYS.org
     
  5. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    Thinning Arctic Sea Ice Prompts Algae Bloom Study | Climate Central

    Climate change is stirring life in the Arctic Ocean as thinning sea ice lets in more sunlight, allowing microscopic algae to bloom in the inhospitable region around the North Pole.

    The average thickness of Arctic sea ice fell to 1.89 meters (6.2 ft) in 2008 from 3.64 meters in 1980, according to another study. Sub-ice algae seem to become dormant in winter, when the sun disappears for months, and are revived in spring.

    The micro-algae may now be able to grow under the ice across almost 30 percent of the Arctic Ocean at the peak of the brief summer in July, up from about 5 percent 30 years ago. Blooms may become even more widespread.
     
  6. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    Climate Change Could Destroy Even the Ocean's Most Pristine Parks | The Atlantic

    Governments have established more than 8,000 marine protected areas, or MPAs, worldwide. These conservation areas are supposed to act as refuges, shielding animals and plants from human exploitation of the environment. A study, published in Nature Climate Change, predicts five times more warming than we’ve seen in the last 15, 20 years, and in some areas, up to 10 times more warming is forecast.

    The new paper also raises two problems—one new and one old. First, the models suggest that the parts of the oceans that don’t warm are most vulnerable to deoxygenation.

    The second problem is a human problem, not a natural one. For the last two decades, scientists have aimed to protect parts of the ocean that will resist global warming—to find so-called refugia from warming. The study found that only 3.5 percent of the world’s marine protected areas—or fewer than 300 areas total—will be protected from both future warming and deoxygenation.
     
  7. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    Melting of Arctic mountain glaciers unprecedented in the past 400 years | Science News

    A study, published in the Journal of Geophysical Research, reports that glaciers in Alaska's Denali National Park are melting faster than at any time in the past four centuries because of rising summer temperatures.

    Ice cores taken from the summit of Mt. Hunter in Denali National Park show summers there are least 1.2-2 degrees Celsius (2.2-3.6 degrees Fahrenheit) warmer than summers were during the 18th, 19th, and early 20th centuries. The warming at Mt. Hunter is about double the amount of warming that has occurred during the summer at areas at sea level in Alaska over the same time period.

    The study's authors conclude warming of the tropical Pacific Ocean has contributed to the unprecedented melting of Mt. Hunter's glaciers by altering how air moves from the tropics to the poles. They suspect melting of mountain glaciers may accelerate faster than melting of sea level glaciers as the Arctic continues to warm.
     
  8. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    It seems someone is producing a banned ozone-depleting chemical again | ARS Technica

    A study produced by NASA has been tracking the decline of atmospheric chlorofluorocarbons (CFCs) and noticed something off with CFC-11. Instead of an accelerating decline, CFC-11 showed a steady drop of 2.1 parts-per-trillion each year between 2002 and 2012. Since then, its decline has actually slowed. Between 2015 and 2017, CFC-11 dropped at only 1.0 part-per-trillion per year. While there may still be some older machines leaking CFC-11, these sources should gradually disappear over time, allowing the decline of its atmospheric concentration to accelerate.

    Seeing as nations are required to track CFC production and report accurate numbers to the United Nations group that oversees the Montreal agreement, this is going to be a contentious conclusion. The researchers chose their words carefully, and the network of measurements isn’t complete enough to point the finger at a specific nation. Still, the list of suspects is short, and some nation needs to find and snuff out the illicit industrial activity within its borders in order to hold up its end of the Montreal Protocol.
     
  9. SamSam
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    SamSam Senior Member

    What sort of large scale ideas have been proposed as a possible solution to agw? The type that call for altering the Earth itself, like painting the planet white.
     
  10. rwatson
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    rwatson Senior Member

    The one that struck me as most feasible, was using sailing drones to push more water vapour into the atmosphere, to increase the Earth's Albedo.

    It was called operation "Brighter Future"
    Project Brighter Future - Epoxyworks http://epoxyworks.com/index.php/project-brighter-future/

    Of course, water is a powerful greenhouse gas itself, so hopefully, the sunlight radiated away vastly exceeds the heat retaining characteristics.
    The storage of carbon underground has met with many technical problems, not the least of which is available suitable rock formations.
     
  11. Angélique
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    Angélique aka Angel (only by name)

    Maybe start with man made structures, like roofs and pavements . . .

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    Painting roofs white is as green as taking cars off the roads for 50 years, says study April 12, 2012
    The article didn't tell me which study and which scientists they're referring to there.

    P.S. - couldn't find that ‘‘journal of Environmental Research Letters’’ for reference...
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    Warming Signs: Would Painting Everything White Make the Planet Cooler ? March 22, 2017

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    Here's an example, Fira the capital of Santorini . . .

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
  12. rwatson
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    rwatson Senior Member

    yeah sure

    "These urban areas cover only 0.3% of the world's land area."

    and

    "Roads will be the bulk of it, so also counting airports, parking lots, etc, maybe 0.2%."

    So that .05% of coverage for an outlay of billions of dollars
     
  13. Angélique
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    Angélique aka Angel (only by name)

    I gave an example, it didn't cost 1 $ extra there . . :cool:
     
  14. ImaginaryNumber
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    ImaginaryNumber Imaginary Member


  15. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    There are two main approaches:
    1) Reducing solar irradiation
    2) CO2 removal


    Six ideas to limit global warming with solar geoengineering | Carbon Brief
    [​IMG]


    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    Climate engineering | Wikipedia

    Solar radiation management methods[4] may include:
    Carbon dioxide removal,Main articles:
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    We should also be aware of the risks involved --
    (from the same Wikipedia article)

    Risks and criticisms
    See also: Solar radiation management § Limitations and risks, and Technological fix § Concerns

    Various criticisms have been made of climate engineering,[59] particularly solar radiation management (SRM) methods.[60] Decision making suffers from intransitivity of policy choice.[61] Some commentators appear fundamentally opposed. Groups such as ETC Group[21] and individuals such as Raymond Pierrehumbert have called for a moratorium on climate engineering techniques.[20][62]

    Ineffectiveness
    The effectiveness of the techniques proposed may fall short of predictions. In ocean iron fertilization, for example, the amount of carbon dioxide removed from the atmosphere may be much lower than predicted, as carbon taken up by plankton may be released back into the atmosphere from dead plankton, rather than being carried to the bottom of the sea and sequestered.[63] Model results from a 2016 study, suggest that blooming algae could even accelerate Arctic warming.[64]

    Moral hazard or risk compensation
    The existence of such techniques may reduce the political and social impetus to reduce carbon emissions.[65] This has generally been called a potential moral hazard, although risk compensation may be a more accurate term. This concern causes many environmental groups and campaigners to be reluctant to advocate or discuss climate engineering for fear of reducing the imperative to cut greenhouse gas emissions.[66] However, several public opinion surveys and focus groups have found evidence of either assertions of a desire to increase emission cuts in the face of climate engineering, or of no effect.[67][68][69][70][71][72][73] Other modelling work suggests that the threat of climate engineering may in fact increase the likelihood of emissions reduction.[74][75][76][77]

    [​IMG]

    Change in sea surface pH caused by anthropogenic CO2
    between the 1700s and the 1990s. This ocean acidification
    will still be a major problem unless atmospheric CO2 is reduced.
     
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