Ocean News

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

  1. rwatson
    Joined: Aug 2007
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    rwatson Senior Member

    About Methane :
    "Angelique : the question is .... if the investment (in Cow Bags) is worth it to keep the methane out of the environment."

    Cows contributions of Methane :
    A cow does on overage release between 70 and 120 kg of Methane per year. Methane is a greenhouse gas like carbon dioxide (CO2). But the negative effect on the climate of Methane is 23 times higher than the effect of CO2. Therefore the release of about 100 kg Methane per year for each cow is equivalent to about 2,300 kg CO2 per year....
    All ruminants (animals which regurgitates food and re-chews it) on the world emit about
    2 billion metric tons of CO2-equivalents per year. In addition,
    Clearing of tropical forests rain forests to get more grazing land and farm land is responsible for an extra
    2.8 billion metric tons of CO2 emission per year!" Are cows the cause of global warming? | Time for change http://timeforchange.org/are-cows-cause-of-global-warming-meat-methane-CO2

    "Termites could produce as much as 150 million tonnes of methane a year. " x 23 = 3450 Million tonnes,
    3.4 Billion tonnes CO2 per year
    Could termites be the world's terminators?: A humble forest insect may http://www.independent.co.uk/news/science/could-termites-be-the-worlds-terminators-a-humble-forest-insect-may-be-emitting-dangerous-amounts-of-1394135.html

    " Land-based permafrost, also in the Siberian arctic, was estimated in 2013 to release 17 million tonnes of methane per year – a significant increase on the 3.8 million tons estimated in 2006" So, say .2 Billion tonnes methane in 2017, =
    4.6 billion tonnes CO2
    per year
    Arctic methane emissions - Wikipedia https://en.wikipedia.org/wiki/Arctic_methane_emissions

    Less Cow Bagging Effects
    So, lets say they put Methane bags on just 200,000 cows
    ( out of ~ 998,000,000 in the world herd .02 % ) =
    .004 billion tonnes CO2 per year.


    Conclusion
    Doesn't look like good value to me.
     
  2. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    The gas back-pack doesn't look terribly practical.
     
  3. rwatson
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    rwatson Senior Member

    It reminds me of cars in WWII
    "A cow does on overage release between 70 and 120 kg of Methane per year"

    So, lets say the average cow produces about .25 kg Methane a day.
    The car below stored 13 cubic metres of "production gas", or "wood gas", that gave it a range of approximately 50 km (30 miles) at an energy consumption of 13 litres per km (22 mpg). - about 550 kilos.
    ("Producer gas has a lower heat of combustion of 5.7 MJ/kg versus 55.9 MJ/kg for natural gas (Methane) , so say about 1/10th. )

    So to drive 50 kilometers, you would need around say, about 55 kilos of Methane, so if 4 cows = 1 kilo per day, or around 13 cows for the 55 litres, for the whole 50 klms (30 miles) every day.

    "Yes Maude - we can go shopping as soon as I milk and de-gas these 13 cows. "


    . CarGasPack.jpg
     
  4. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    I don't think anyone who eats meat produced by the industrial agro-business can possibly be concerned by cruelty to animals. Where is MYARK when you need him?

    [​IMG]

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    Last edited: Nov 27, 2017
  5. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    Climate change to have devastating effect in Asia | The Economic Times

    According to a report produced by the Asian Development Bank and the Potsdam Institute for Climate Impact Research, climate change will bring devastating consequences to countries in the Pacific and Asia.

    While rice yields could potentially increase in the northern states of India, rice yields may decline by 5 per cent in the 2030s, 14.5 per cent in the 2050s and 17 per cent in the 2080s in the southern states.

    For the 136 largest coastal cities, average flood losses in 2005 were approximately $6 billion per year, but will increase to $52 billion by 2050.

    [​IMG]
     
    Last edited: Nov 27, 2017
  6. hoytedow
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    hoytedow Wood Butcher

    You don't know what my concerns are.
     
  7. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    Nations Will Start Talks to Protect Fish of the High Seas | New York Times

    More than half of the world’s oceans belong to no one, which often makes their riches ripe for plunder. In late July, after two years of talks, diplomats at the United Nations recommended starting treaty negotiations to create marine protected areas in waters beyond national jurisdiction — and in turn, begin the high-stakes diplomatic jostling over how much to protect and how to enforce rules.

    The commercial interests are powerful. Russian and Norwegian vessels go to the high seas for krill fishing; Japanese and Chinese vessels go there for tuna. India and China are exploring the seabed in international waters for valuable minerals. Many countries are loath to adopt new rules that would constrain them.
    ^^^^^^^^^^^^^^^^^^^^^^^
    see also: The Outlaw Ocean
    Stowaways and Crimes Aboard a Scofflaw Ship
    Few places on Earth are as free from legal oversight as the high seas. One ship has been among the most persistent offenders.
    Murder at Sea: Captured on Video, but Killers Go Free
    A video shows at least four unarmed men being gunned down in the water. Despite dozens of witnesses, the killings went unreported and remain a mystery.
    ‘Sea Slaves’: The Human Misery That Feeds Pets and Livestock
    Men who have fled servitude on fishing boats recount beatings and worse as nets are cast for the catch that will become pet food and livestock feed.
    A Renegade Trawler, Hunted for 10,000 Miles by Vigilantes
    For 110 days and across two seas and three oceans, crews stalked a fugitive fishing ship considered the world’s most notorious poacher.
    Tricked and Indebted on Land, Abused or Abandoned at Sea
    Illegal “manning agencies” trick villagers in the Philippines with false promises of high wages and send them to ships notorious for poor safety and labor records.
    Maritime ‘Repo Men’: A Last Resort for Stolen Ships
    Thousands of boats are stolen each year, and some are recovered using alcohol, prostitutes, witch doctors and other forms of guile.
    Palau vs. the Poachers
    The island nation has mounted an aggressive response to illegal fishing in their waters. How they protect themselves may help the rest of the world save all of the oceans.
    Ending the Abuse of Laws, Workers and the Environment at Sea
    Labor, human rights and environmental abuses are widespread largely because the oceans are so sprawling, jurisdiction is complicated and policing is rare.
    Sailing Beyond the Rule of Law
    How can law and order be brought to the high seas, as crime, piracy and pollution are rampant?
     
    Last edited: Nov 28, 2017
  8. hoytedow
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    hoytedow Wood Butcher

    Push the UN into the high seas!
     
  9. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    Global Warming Might Be Speeding Up | Bloomberg

    It’s almost universally understood that the Earth will continue to get warmer for the foreseeable future. The rate at which the planet warms, however, won’t remain the same -- it’s likely to speed up. Warming projections based only on historical observations assume the pace of climate change will remain the same; the new study says that as time goes on, things may get worse faster.

    A bonus for today: here's how to change a conservative into a liberal (or vice-versa).

    [​IMG]
     
  10. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

  11. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    Storm Waves With the Power to Heave Massive Boulders Over Cliffs | New York Times

    Along various shorelines around the world are perched very large boulders. A study published in the Proceedings of the National Academy of Sciences suggests that in many cases powerful storm surges swept the boulders inward rather than tsunamis.

    They found that storm waves are powerful enough to wash massive boulders that originate beneath the ocean’s surface hundreds of feet inland — exactly where they’re found in western Ireland. Climate scientists predict these types of storms are bound to increase in our warming world.

    [​IMG]
    A panoramic view of boulders at Annagh Head, on Ireland’s west coast.
     
  12. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    As Greenland Melts, Where’s the Water Going? | New York Times

    Each year, Greenland loses 270 billion tons of ice as the planet warms. New research shows that some of the water may be trapped in the ice sheet, which could change how scientists think about global sea levels.

    “Sea level rising is 3 millimeters [1/8"] a year right now,” Dr. Wagner said. “But in a hundred years, we could have one to five feet of rise.”

    [​IMG]
     
  13. ImaginaryNumber
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    ImaginaryNumber An Imaginary Member

    The most accurate climate change models predict the most alarming consequences, study finds | Washington Post

    The climate change simulations that best capture current planetary conditions are also the ones that predict the most dire levels of human-driven warming, according to a statistical study released in the journal Nature. Under a high warming scenario in which large emissions continue throughout the century, the models as a whole give a mean warming of 4.3 degrees Celsius (or 7.74 degrees Fahrenheit), plus or minus 0.7 degrees Celsius, for the period between 2081 and 2100. But the best models, according to this test, gave an answer of 4.8 degrees Celsius (8.64 degrees Fahrenheit), plus or minus 0.4 degrees Celsius.

    The study “would imply that to stabilize temperature at 2 degrees Celsius, you’d have to have 15 percent less cumulative CO2 emissions,” he said. The world can ill afford that — as it is, it is very hard to see how even the current carbon budget can be met. The world is generally regarded as being off track when it comes to cutting its emissions, and with continuing economic growth, the challenge is enormous.

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  14. rwatson
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    rwatson Senior Member

    You have lived a life style unparalleled in human history because of Science. You have enjoyed amazing advances in health, food, accommodation, communication and technology in general due to Science.

    Science has also had to correct the errors man has made. Take DDT, Lead in Petrol, Chlorofluorocarbons, Acid Rain , bad medical practices and a million other things.

    Now Science says "Your thriving has created a much bigger problem, we need to fix it".
    and your response is "But I have a RIGHT to THRIVE. I am AMERICAN. I DESERVE IT ?

    I have news for you - there are Billions more people who also have a right to thrive. (Millions of them have already fled the climate change effects in Europe, for example) They have a right to grow their own food without increasing drought and huge unseasonable deluges. They have a right to harvest food from the increasingly acidic oceans.

    "Even though the ocean is immense, enough carbon dioxide can have a major impact. In the past 200 years alone, ocean water has become 30 percent more acidic—faster than any known change in ocean chemistry in the last 50 million years."

    This is a very informative article on the phenomena, which as a Boat Forum, should be of interest.

    Ocean Acidification http://ocean.si.edu/ocean-acidification
     

  15. hoytedow
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    hoytedow Wood Butcher

    Science is a great system of learning. We must not allow it to fall prey to the dark motives of those who would use it to destroy our freedom and prosperity. Science has not shown that our prosperity is responsible for the evils of the world. On the contrary, true science has lifted billions of people out of much misery by making increased prosperity more accessible.
     
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