Wednesday, May 23, 2012

Methane and Mercury


Methane seeps


Read the following articles:
Arctic Melt Releasing Ancient Methane  and
Toxic mercury, accumulating in the Arctic, springs from a hidden source

Why is methane being released into the atmosphere from the arctic and why is this a concern?


Where is Mercury coming from and why is it concentrated at the poles? Why is this a serious problem? 


What does bioaccumulative mean?


What groups of people are most impacted by the mercury pollution?  Why do you think it is now recommended that pregnant women and children under three not eat fish that have high concentrations of mercury?

What are some possible solutions to these environmental and human health problems?




50 comments:

  1. The methane which was being trapped is being released from the ice and causing global warming to acculturate because methane is more harmful to the atmosphere. The mercury is being released from warming arctic soil. It is the highest amount in marine mammals from the north pole. A bio-accumulative is a toxin that moves up the food chain without breaking down. Indigenous arctic people are the most impacted by the mercury pollution. Pregnant women are recommended to eat fish because the mercury can cause developmental problems in children. Some possible solutions are to stop polluting the environment so the earth stops warming and toxins there fore won't be released.

    -Morgan Proffitt
    Block 3

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  2. Brandon Courture B3May 23, 2012 at 11:33 AM

    The methane which was trapped in the ice, which is now melting, is being released into the atmosphere. This is a concern because methane is a powerful greenhouse gas and it is causing temperatures to rise even further. The mercury is being released from warming arctic soils and it a concern because it can accumulate in fish and marine life to make the levels thousands of times higher than normal. Bio-accumulative is a poison that works its way up the food chain without breaking down. Fishers and people who love along coastal areas are the most impacted by this pollution. It is important for pregnant woman and children to avoid fish because mercury can cause mental disorders and many kinds of brain damage. In order to avoid this we must stop polluting the environment to stop the temperature from rising to stop the ice from melting.

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  3. Jesse Ramirez Block 3
    The methane gas is trapped in ice and as it melts that is how the methane escapes. As a result of this the methane gas can effect the climate severely. Some methane gas is man made and are in waste disposal sites. There is over 150,000 methane seeps in Alaska and Greenland. It is predicted by 2100 there will be a methane carbon cycle. Mercury now mostly comes from the rivers. This element is very dangerous and can effect the food chain as microbial process. Biocummiltive means it is in the enciornment. To be continued....

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  4. Methane That has been trapped under the ice is being released because of global warming, and because of this the methane is harming the atmosphere.The soil in the arctic has a high concentration of mercury and is being released by the melting of the ice. This is concerning because the mercury can raise the natural level by up to a million. Pregnant women or young children are not recommended to eat fish because the fish might be contaminated with high levels of mercury and cause birth defects and developmental problems. A way to stop this could be to lessen the combustion of fossil fuel and reduce pollution and stop global warming.
    Conner Thomson, Block 3

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  5. Methane that is being trapped under ice has released because of global warming which then causes it to harm the atmosphere. It is released by warming arctic souls and is a serious problem because it can affect the marine life. A bio-accumulative is a toxin that will move up the food chain without it breaking down. People that involve being around the coast are most impacted by this. Its for pregnant women and children under 3 not to eat fish because the mercury can cause mental disorder, birth defects, and many other sorts of brain damage. A solution is that we need to stop polluting the earth around us so the earth doesnt get warmer and warmer and increase the chance of global warming.
    Chris Harshman, block 3

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    Replies
    1. Sounds a lot like Morgan's AND Brandon's entry. Hmmmmmm...

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  6. The methane under the ice is being released due to the alleged global warming. Methane is a greenhouse gas that can dramatically harm the atmosphere. The mercury is in the melted ice from the arctic because of the high levels of mercury in arctic marine mammals. Mercury in humans is a "neurotoxin". It has been found to cause long-term development problems in children and to impair cardiovascular health in adults. It is bioaccumulative which means it remains in the environment without breaking down. It becomes more concentrated the higher up the food chain it goes. Natives of the arctic region are highly susceptible due to the massive amounts of consumed fish. In the case of eating mercury-ridden fish, toddlers and pregnant mothers should stray from fish because of the risk in development delay. The best way to halt these health and environment issues is to stop polluting as much as possible. This is the only viable way to decrease the rate at which the these toxins are released.
    -------------Zach Bianchi B.2

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  7. Methane deposits have been trapped beneath the arctic ice for millennia and now they are being released into the atmosphere. This is a problem because methane is the 2nd most problematic green house gas after carbon dioxide. If the ice is melting because of global warming, and more gasses contributing to global warming are released from the melting, then the problem can be escalating and accelerating faster then we predicted. Mercury is a serious neurotoxin and can impair brain development which is why pregnant women and children shouldn't eat contaminated fish. Mercury is released into the atmosphere through the burning of coal. Recently it was discovered that mercury from rivers in siberia has found its way to the arctic and is accumulating in fish and marine mammals which the indigenous people of the arctic eat. Bio accumulative means that it is introduced to the environment but doesn't decay, so it can build up. Unfortunately Siberia will do what it pleases and dump its mining byproducts where it wants. Perhaps some organization can give them a monetary incentive to dispose their metals responsibly. Those darn Siberians...
    -Patrick Bradshaw B2

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  8. Jesse Ramirez Block 3 continue-
    The enviornment of the bioaccumualive is a toxin that does not break down and remains in the enviornment. The most that is affected by mercury is indigenous people of the Artic and northern populations. Rivers are the most contaminated with the element and pregnant women should not eat fish with this element because it can be fatal to the fetus. Some human health problems and enviornmental problem is that is a contribution for the climate change on this planet. This element is also produced from combustion of coal and mining.

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  9. Global warming is causing methane to be released into the atmosphere because methane has been trapped underneath the ice and the ice is melting causing the methane to escape into the air. The release of methane into the atmosphere is harmful to the environmental because it is a green house gas and causing global warming to go even further. Mercury is in the soil in the arctic and since the ice is melting it is going into the water. The fish and other wild life are being contaminated with mercury and many pregnant women and children are advised to stay away from eating these.Eating mercury can cause birth defects, brain damage,and can also cause cardiovascular problems in adults. Bio-accumulative means a toxin stays in the environment and doesn't break down, this allows it to move up in the food chain.I think its recommended women and young children not eat the mercury filled fish because it can cause them health issues. Instead of eating fish we could implement other meats into our diet or become vegetarians.

    Sarah Fahrney Block2

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  10. Trapped methane under the ice is being released due to global warming. this causes even more harm to the atmosphere. The mercury is being released from warming arctic soil. This is then absorbed by marine life, which is eaten by people along the coast. A bio-accumulative is a toxin that moves up the food chain without breaking down. People that are most affected are children and pregnant women because it can cause serious health problems. I think that in order to fix this problem we need to fix the other main global warming problems first.

    Jared Putnam- Block 2

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  11. Global warming is causing the ice caps to melt releasing methane into the atmosphere. Methane in our atmosphere is dangerous because it is a green house gas which is making global warming worse! Mercury is in the soil and is also being released into our environment from the ice melting. It is flowing into our waters and the fish and other wild life are being contaminated. This is extremely dangerous because the people along the coast are eating the contaminated fish. Mercury is very harmful to pregnant women and children and if it is eaten different birth defects, brain damage and cardiovascular problems in adults can be caused. Bio-accumulative refers to a toxin which stays in the environment and doesn't break down, allowing it to move up in the food chain, like mercury has. I think global warming is a serious issue and we need to eliminate all caused of it and until we do that we won't be able to fix this problem.
    -katy thomas block 3

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  12. Methane is being released from the ice because when the ice melts, it allows the methane to escape. This is a a big problem because the release of methane gas contributes greatly to climate change. Mercury is coming from mining, coal combustion, and waste incineration. Once mercury from these sources is airborne, it can be carried by clouds and dropped as rain or snow. This can be dropped into the ocean or the Arctic for example. This is a problem because it will continue to effect climate change and is a potent "neurotoxin" to humans causing long-term developmental delays and impair cardiovascular health. A Bio-accumulative is a toxin that moves up the food chain without breaking down. The people living in the Arctic region are the most affected by mercury pollution. Pregnant women are told not to eat fish because the mercury can cause long-term developmental delays in children under three. The best way to stop these enviornmental problems would be to eliminate dangerous mining that releases elements into the air that should not be released.Then we must try to stop pollution to get the ice caps the stop melting there fore stopping the the release of polluting Arctic elements.

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    1. ^ That right there was Anthony Allio BL. 3

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  13. Methane has been trapped in the ice and stored for millions of years in the Arctic and it is now being released as the ice melts. According to researchers, this greenhouse gas could play a significant role (as a catalyst) in the increasing of global temperatures. Moreover, concentrations of mercury may further increase as climate change (in decades from now possibly witness a swift acceleration in global temperatures) continues to modify specific regions' hydrological cycles. Sources of mercury include some natural and some man-made, such as landfill waste disposal sites and farm animals. Natural sources include the release mercury from warming Arctic soils and also rivers. The north and south poles (considered the fastest warming regions on the planet) stores huge quantities of mercury in different places, in and under permafrost on land, on and under the sea bed, and (evidenced by the latest research) in geological reservoirs. Bioaccumulation means the build up of a toxin in a food system over time and its levels tend to highly increase and not break down. Native Arctic people are the most affected by the mercury pollution, being the closest beings from the released sources and consuming the toxic fish. As mercury is toxin to humans and a potent neurotoxin, it is not recommended that pregnant women and/or children under three consume fish with high levels of mercury because it can cause long-term developmental problems and also issues with the cardiovascular health system. The large release of mercury in years to follow poses as a serious threat to our environment and to diminish the environmental and health hazards, possible solutions include other sustainable methods in combustion and mining around the world that contribute to the warming atmosphere and a halt in pollution of other greenhouses gases around the world.
    Tori Henry - Blk 3

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  14. Scientists are now finding that methane is being released in unexpected amounts from various ice fields and glaciers. They have determined that the methane has been trapped for a long amount of time and is now being seen in chemical readings because of the major increase of polar ice melting. It is possible that the methane is coming from natural gas deposits or coal deposits underneath the lakes. Another option is plants under the ice sheets are decomposing and releasing methane as the ice melts over time. This release in methane is a concern because it will cause the cycling of methane to increase causing the warming of the atmosphere as a feedback. Mercury is considered a natural toxin and is being measured in high concentrations at the poles and in rivers near the Arctic. Mercury is natural but humans have enriched the amount that enters ecosystems by coal combustion and mining. It is concentrated at the poles because that is where most water sources lead to by the force of gravity. Mercury is considered dangerous, or could become dangerous, because its amount in ecosystems increases as the production or formation increases at alarming rates. Mercury is difficult to break down. It is a bioaccumulative toxin, meaning it remains within the environment without breaking down. It is able to travel up the food chain and accumulate in amounts that are dangerous to life. People in the Arctic are susceptible to having high amounts of mercury entering their system. This is because rivers flowing into the Arctic bring large amounts of mercury into the ocean. There, the fish accumulate the mercury and the people of the Arctic have a diet of primarily fish and other sea animals. Pregnant women and children under three should not eat fish or fish from the Arctic because the high amounts of mercury can have long term affects on the baby or a toddler's brain development. It can also cause illnesses if too much was taken into the human body. I don't think that the methane problem can be solved because it is a natural occurrence coming from the melting of ice, unless we change our ways in contributing methane and heat into the atmosphere to stop ice melting. We can solve the mercury problem a little easier I think. We can stop the coal combustion near rivers and make an effort to clean up mercury within water systems. Also, when mercury levels are high, fisherman should test the fish and waters to see if the fish can even be sold to the public or if cleansing has to be done first. These solutions would take a lot of effort, money, and time which makes them seem impossible; but I believe that if enough scientists realize what is happening, then maybe the problems can be solved.

    -Amber Alexander Block 2

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  15. The methane is being released into the atmosphere from the arctic because of the increase of the polar ice melting, allowing for the trapped methane gas to be realesed. This is a major concern because it will cause the temperature of the atmosphere to increase. A toxin that is bioaccumulative remains in the environment without breaking down. People that are most impacted by the mercury pollution are pregnant women and children and it can cause birth defects, brain damage and/or cardiovascular problems if eaten. For this reason it is now recommended hat pregnant women and children under three not eat fish that have high concentrations of mercury. Some possible solutions to these environmental and human health problems are better,cleaner methods for combustion and mining that decrease pollution in our atmosphere.

    Kelly Randazzo Block 2

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  16. Methane is being released into the atmosphere from the artic as the ice melts. Methane is trapped under the frozen ice and as the ice melts the methane gets released. This is a concern because methane is a greenhouse gas. This means that the more the ice melts the more methane is released and the more the ice will melt. It’s a vicious cycle that will not end. The mercury is coming from the soil being eroded and into the rivers which then flow into the Arctic Ocean. This is a serious problem because mercury is a neurotoxin to humans. Because of the high concentration of mercury in the Arctic Ocean, marine animals have high levels of mercury in their bodies. This is a big problem because mercury is bio accumulative meaning that it moves up the food chain and does not break down. Pregnant women and young children are not recommended to fish because fish often contains high concentrations of mercury. Mercury is known to cause birth defects. A short term solution for the human health problems would be a change in diet, limiting the amount of mercury-laden fish that is consumed by all parties. A long term solution and goal is to slow down the progress of global warming. Mercury is put into the atmosphere by mining and industry. These things also release greenhouse gases. Finding more efficient ways to complete both tasks would lead to lower mercury levels and lower methane levels and an overall healthier planet.
    Alexis Wildman - Block 2

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  17. After many years of being entrapped within the ices of the arctic, the second most important form of greenhouse gas, methane, is seeping through our fast melting arctic glaciers. Some of this gas is extremely ancient, as it has been within the ice for thousands of years. However, some is newly formed methane, being produced from decaying plants in the water. This substantial, significant, and sudden release of methane has the potential to contribute enormously to the effects of global warming. The gas being put into the atmosphere can jolt warming of the glaciers which, in turn, would release even more of the greenhouse gas initiating an endless cycle. Another issue relevant to pollution is the abundance of high levels of mercury in the environment. Although it is naturally occurring in the world already, human actions, such as "coal combustion," can release more than is normal into the environment. As this mercury is naturally converted into methylmercury in the oceans, it can build up and occupy fish and wildlife transferring into ocean-fed rivers. Mercury is referred to as a bioaccumulative toxin as it remains in the environment and travels up the food chain without breaking down (also becoming more concentrated). Mercury is very dangerous to humans and can cause development delays as well as cardiovascular defects. This problem is most concentrated at the poles, where the diet is highly composed of fish. People in these regions are very susceptible to mercury exposure. Children under 3 and pregnant women should be overly aware of their fish consumption as, stated above, mercury can cause problems in development in young people. Some possible solutions to these problems could include the moderation of coal combustion as well as a strong consideration of other forms of energy to slow down the processes of global warming.
    -Michael Wilson, Block 2

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  18. The methane which was trapped in the ice is being released into the atmosphere due to the ice melting. This is a concern because methane,a powerful greenhouse gas, is causing temperatures to rise even further. The mercury is being released from warming arctic soils and it a problem because it can accumulate in marine life, makeing the levels many times higher than normal. Bio-accumulative is a poison that works its way up the food chain without breaking down. Fishermen and people who live along coastal areas are the most impacted by this pollution. It is important for pregnant woman and children to avoid fish because mercury can cause mental disorders and many kinds of brain damage. In order to avoid this we must stop polluting the environment to stop the temperature from rising that is causeing the ice from melting.

    -dylan amezcua, block 2

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  19. the methane is being trapped in the ice and as the ice melts, it is being released into the air. The temperature in earth's atmosphere is rising (global warming) because of this gas. Mercury is released from arctic soils. human actions are also causing this rise of mercury in the environment. Mercury is very dangerous if it is in humans. mercury can also be accumulated by marine life, which is one reason why it is very concentrated at the north and south poles.people who live in these areas are much more at risk because they eat more fish and other marine animals. a bioaccumulative toxin is a toxin that remains in the environment throughout the food chain without breaking down at all. Mercury is one of these toxins. one way we can partially solve these problems is to quit the "coal combustion" and use other forms of energy. this should help slow down global warming.


    JAKE MEDEIROS B2

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  20. Methane that has been previously trapped in ice for millions of years is now being released as the ice melts due to increasing global temperatures. This is an issue because methane is a stronger greehouse gas than carbon dioxide, and will only serve to accelerate the process of global warming as more of it is released into the atmosphere. Mercury is being found in large concentrations in oceans and rivers near the Arctic, and more will be released by the eroding of Arctic soils and by harmful coal mining and combustion. This is a huge problem because mercury is a serious neurotoxin. The mercury is bioaccumulative, meaning that it does not break down in the body, so it is allowed to accumulate in the body when moving up the food chain. People indigenous to the Arctic are most affected because their diet mainly consists of fish and aquatic mammals that have high levels of accumulated mercury. Pregnant women and children under three years old are advised against eating fish that contain mercury because it can couse long-term development issues. One way of helping this issue would be to monitor coal mining and combustion to reduce the amount of mercury that is released.

    -Cole Joyce, Block 2

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  21. Methane is being released into the atmosphere as the Arctic ice it has been trapped in for thousands of years. This dangerous gas is especially important as it is the second most potent green house gas. Because this gas contributes to the earth heating up, if this process continues it will create a feedback loop. As the earth warms the ice melts, causing the gas to be released. This in turn causes the globe to heat even more, which melts more ice and the cycle begins again. Mercury is a dangerous element that in high concentrations can cause serious brain damage. Two ways that mercury is released into the atmosphere are by mining and burning coal. One way that mercury gets very concentrated is through the process of bio-accumulation. In this process, chemical levels that normally would not be dangerous to a human can be contained in a single organism, however by consuming many organisms that contain low levels, they combine to become a very high level of concentration. Mercury is commonly found in fish, so people who live in coastal regions and and fishermen are at high levels of risk for mercury poison. Since one common side effect of mercury is failure for the brain to properly develop, small children and unborn should not be exposed to such dangerous neurotoxins. By decreasing our output of mercury into the environment and closely testing if certain foods contain high levels of mercury it is possible to decrease the threat of this dangerous toxin.

    By Keilani Spencer, B3

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  22. 1. Methane being released into the atmosphere is a problem because it adds to the greenhouse gasses in the atmosphere. This is happens because the methane that was trapped in the ice if the polar caps, and now due to global warming, the ice is melting.
    2.The mercury is coming from the decomposition of arctic mammals. It is concentrated there because of the lack of human disruption. This is a serious problem because it destructive for our planet.
    3. Bio accumulative means the accumulation of elements
    4. Pregnant women and old people are most impacted by mercury pollution. Pregnant women and children under three shouldn’t eat fish because of the high mercury content which can be bad for development.
    5. Some solutions for these environmental and health problems are not causing any more methane gas to be released into the atmosphere. Our obsession with cows is terrible for the environment. Those cows release much more methane gas into the atmosphere than some ice patch in the arctic.
    Jasmine Besler, Block 3

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  23. Methane is being released from the artic because it has been trapped under the ice for many years but now the ice is melting so methane is being released. This is a problem because methane is the second worst greenhouse gas and levels are beginning to rise again. Mercury is cooming from rivers, this is a problem because as more rivers melt there will be more mercury and mercury does not break down in the food chain. Bioaccumulative is the acclimation of substances in an organism.Everyone because 3 of the 10 largest rivers or 10% of our fresh water comes from the artic. Pregnant women should not eat mercury because there body will not break it down and it will go directly to the baby.Solutions are to find better forms of energy so we do not have to rely on coal which can lead to global warming.

    Matt Paskey

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  24. The Methane is being released into the atmosphere because the arctic ice is melting and this is a large concern because, methane is a Green-house gas and large amounts of it could drastically change the climate. Mercury is Likely coming from the rivers near the poles but the real source of the mercury is Humans, specifically the Mining and Coal burning. What is happening is the mercury produced by humans is being absorbed by sea-life and multiplied in out oceans, it is concentrated near the poles because there is more water there, and less human restrictions on mining and other activities. this is a concern because to humans, Mercury is a Nero-toxin and can cause problem sin childrens development and adults health. Bio-accumulative means that the substance or compound does not break-down over time and instead becomes more concentrated as it moves through the environmental food chain. The indigenous people of the arctic are the most susceptible to the mercury poisoning. The reasons for not allowing Pregnant women and children under 3 to eat fish with high levels of mercury is simple, Mercury is known to cause problems in children and their development.There is no simple solution to this problem... the most obvious would be to abruptly stop use of coal, however that is never going to happen so the only possible solution is to slowly move to more "green" forms of energy in the future.
    Martin Scott, Blk.2

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  25. Methane is being released into the air because, when the ice in the arctic melts, it opens up pockets of Methane, and releases it into the air. This is a concern because Methane is a greenhouse gas. Mercury is being deposited by ocean currents in the Arctic, causing there to be high concentration at the poles. Mercury is harmful because it is a neurotoxin, and slows development in children. Bioaccumalative is a large build up of a substance in the environment that doesn't break down. The people who are most affected are arctic natives or Inuits. Mercury is a problem for children and pregnant women because it slows down development, and causes brain development issues in unborn children. There is no one solution, but overall the human race needs to become more environmentally friendly, and needs to decrease our mass pollution of our planet. Mark Graupensperger- Block #2

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  26. The methane gas is trapped in the ice so as the ice melts it, due to global warming, it releases the trapped gas, only furthering the global warming issue. The gas exerting into the atmosphere only increases the Earth's temperature. The Mercury, however, is released from arctic soils which is actually coming from the decomposition of animals. Unfortunately human actions are only making this rise of mercury in the environment more devestating. Mercury can also be found in marine life (fish). Not only is this one of the reasons why it is very concentrated in th north/south poles but it is very dangerous for humans to digest mercury. The people that live in more mercury concentrated areas are much more exposed to the everyday dangers of eating the marine life. Bioaccumulative toxins are any toxins that remain in the environment throughout the food chain without breaking down fully or at all. Mercury happens to be one of these terrible toxins. All we can really do now is slow down the process of glabal warming, hopefully by stopping the coal combustion and use other forms of energy. Science should focus on that more than anything. As far as the mecury toxin I cant think of any way to solve it.
    Emily Moore
    Block 2

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  27. When the ice melts from global warming it releases methane gas that was previously trapped. Methane is a greenhouse gas and is contributing to global warming. This means the methane that has already been released is contributing to to the release of more methane. Mercury is released from soil being eroded which is caused naturally and by humans. It is accumulating at the earths poles and its concentration in marine life is increasing. This is dangerous because if we ingest this food the mercury in it is very harmful to us. It is especially harmful to pregnant mothers children. A way to try to stop this process is to cease the mining and burning of coal because it is a big contributor to global warming.
    -Logan Nicholas block 3

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  28. global warming is causing ice that had been frozen for an extremely long amount of time to melt. this is releasing methane gas that has been trapped in the ice into the air and is adding to the greenhouse gasses. it is making the earth even warmer and just making the whole thing happen even more.
    mercury is ending up in the arctic because of ocean current that carry it. mercury slows the development of children and increases defects- a neurotoxin.
    bioaccumalative means that a large amount of a substance built up in the environment that won't break down.
    Inuits are most affected by this because it happening more and more near their homeland and the animals they eat have lots of murcery in them because of this.
    if pregnant women or small children eat animals with mercury in them it can mess up the you and unborn child and they wont develop properly.
    to help stop global warming and the melting of the ice caps, we can try to use more 'green' energy so not as MUCH methane is released into the air and the melting could at least be slowed.
    warnings should be put on any marine life-food-products about mercury and its affects so pregnant women and small children are less likely to eat it.
    -kristen schmuhl block 3

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  29. Methane has been trapped in the ice caps and as the ice melts due to global warming, the trapped gasses are released. This is a concern because it is adding to the already harmful affects of global warming. Mercury is being released from arctic soils near rivers and oceans. Mercury is released into the atmosphere by mining and burning coal This is harmful to the environment because mercury is a neuro-toxin that slows the development of the brain and other parts of the human body. Mercury can also build up in marine life, which causes the fish harmful if eaten. People in the Arctic are susceptible to having high amounts of mercury entering their system.
    This is why pregnant women and children are not supposed to eat fish because it can cause birth and development affects. A Bio-accumulative is a toxin that moves up the food chain without breaking down. We can slow this process down by lowering our pollution rates.

    >>>>>Michael Sunding Bl 3<<<<<

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  30. Methane is trapped in the ice, and as the ice melts, the methane is released. It is a concern because methane is a greenhouse gas. Greenhouse gases greatly affect the temperature of the Earth. Recently,a lot mercury has been found in rivers. Arctic animals(at the poles) have the highest concentration of mercury, most likely due to the little amount of human disruption. It is considered very dangerous because mercury is bio-accumulative, meaning it stays in the environment for a long time, and will climb up the food chain. Indigenous people in the Arctic have a higher susceptibility level due to the fact that they consume local animals, with high mercury levels. For humans, mercury acts as a neurotoxin, and can cause developmental problems in children, and affect cardiovascular systems in adults. There is no set way to stop the release of methane and mercury in the environment, keeping people are aware of the dangers and consequences of these things is a way too help.

    Miranda Menig
    Block 3

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  31. Methane gas gets trapped under the ice over periods of time and recently it is being released because the ice is melting. This releasing of gas is contributing to global warming. A toxin that is bioaccumulative stays in the environment without breaking down over time like most natural substances. People that are most affected by the mercury pollution are pregnant women and children because it can cause birth defects, brain damage and/or cardiovascular problems if eaten. Steingraber talked about this for a while in Nevada City. Mercury is not too dangerous in small doses but as it gets higher in the food chain the concentration increases. For this reason it is now recommended hat pregnant women and children under three not eat fish that have high concentrations of mercury. Some possible solutions to these environmental and human health problems are better,cleaner methods for combustion and mining that decrease pollution in our atmosphere. Fracking is also dangerous and should be avoided because it costs more money than it generates and it is harmful to the environment.
    Giles Barrett
    Block 3

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  32. Methane is being released through the melting of the ice with the methane under it. The release of the methane may cause a climate change. Mercury is coming from the rivers which is becoming hazardous to anyone who takes in the water from the river. Bioaccumulative is a toxin that stays in the environment without breaking down. The people that are most influenced by the pollution of mercury are the people who live in the Artic because of their large intake of food and other marine mammals. Pregnant women and children under 3 are not encouraged to eat fish with mercury cause it causes birth defects and delays growing for children. I think if people focused more on what they were eating and what they used to hold their food in, I think we may have an improvement on health and the environment.
    Schelbea Vrooman
    Block 3

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  33. well the Arctic has recently gained an influx of cows, large producers of Methane. this is a problem because there isnt any grass in the ice, and all those cows will soon die. mercury come from hat makers, who have had to move to the poles due to their craziness and mercury poisoning. without them the world will be short on hats, a problem for hipsters and baseball players everywhere. bioaccumulation is the discharge let off by plants. get your minds out of the gutter, not THAT kind of discharge. EVERYBODY is affected equally. except Hungarians. im not sure why. obviously the only solution is to cleanse the world with fire.

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  34. Methane is being released into the atmosphere from the arctic as the ice is melting. This is a huge concern because the methane is contributing to greenhouse gases. Greenhouse gases are melting the ice in the arctic, which means that the whole process will continue until the greenhouse gases are all released from the ice. It is a never ending cycle. The mercury in the Arctic ocean is coming from the mercury infested soils from the rivers flowing into the Arctic ocean.This is a serious problem because mercury is a neurotoxin. Because of this high concentration of mercury in the water, marine animals have high levels of mercury in their bodies. This is a big problem because mercury is bio accumulative, meaning that it does not break down in the food chain. Pregnant women and young children are not recommended to eat fish because most fish often contain high concentrations of mercury. Some solutions would be to find better forms of energy so we do not have to rely on coal which is leading to global warming.
    Michael Moore BLK 3

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  35. The methane has been trapped in the ice for a very long time, but now that the ice is melting the methane is begining to be released. This release of methane could have a huge impact on the climate change. With ground based servays about 150000 methane seeps in Alaska Greenland in lakes along the margins of ice cover. They are releasing ancient methane, maybe natural gas or coal deposits under lskes. The artic is the fastest warming region on the.planet the methane aircraft increase as the temature rises. Biouccumulative is something that remains in the enviroment without breaking down as it travles up the food chain . It becomes more consentrated and more dangerous. The native people of the artic are most effected because they eat large amounts of the fish from the close area. Pregnant women should not eat fish with high amounts of methane because it will travle to the baby and hurt it. Young childen also should not injest large amounts of methane because it is not good for you and you will be exsposed to methane for the rest of your life. We should try to find a way to stop the release of methane. Also try to stop the
    burning and mining of coal because that gives off methane gas.

    Shelby kerstetter
    Block 2

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  36. It is being released because it got caught under the ice and comes up when the ice melts. Some of released gas is from ancient methane, possibly from natural gas or coal deposits underneath the lakes. However the more recent gas being released is probably from decay of plant material in the lakes. It is a concern because it adds to the green house gases in the atmosphere adding to global warming.Mercury is a natural element that gets enriched by humans from mining and coal combustion. A lot of mercury is coming from rivers. This accumulation of mercury increase is also adding to the impact of global warming due to toxins in the water and the mercury from the Arctic soils. It is where the lower species on the food chain eat something toxic and as it moves up the food chain the toxic levels get more concentrated. For an example is DDT. Remains in food chain and does not break down.Indigenous and native people get poisoning the worse due to the consumption of fish. It recommends that pregnant women do not eat fish because of toxic poisons which can cause birth defects or death of baby. Some solutions are stopping pollution of mercury. a scientific revelation where they build something high tech to clean the water. Make sure drilling and mining are away from water sources.

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  37. The methane has been trapped by ice, but is able to escape as the ice melts. It was formed through the decay of plant material in the lakes. It is a concern because its increasing the impact of global warming. Mercury is natural that has been added into human activities like mining. When converted, it can accumulate in living organisms such as fish at concentrations up to a million times higher than the levels found in the environment. Bioaccumulative means that it remains in the environment without breaking down. The native people get poisoned the worst because of their habitats/ habits in nature. For example, fishing is one of the biggest reason that they are impacted. A way to help is to create a filter that cleans the water(water purifier).

    Colton Likarich
    Block 3

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  38. The Methane gas has been trapped in the ice, but as the ice melts, the gas is released into the atmosphere. It is a concern because the levels of greenhouse gases are rising as the ice melts which leads to global warming. The Mercury is caused by both atmospheric forces and circumpolar rivers that flow into the Arctic Ocean. Mercury causes serious problems because it contributes to global warming. As Mercury is released from warming Arctic soils it causes a downward spiral which then releases more and more Mercury. A bio-accumulative toxin stays in the environment without breaking down. As the toxin travels up the food chain it becomes more concentrated and harms its victims even more. Indigenous people in the Arctic are harmed more by the Mercury because they eat large amounts of fish and other seafood as part of their normal diet. Pregnant women shouldn't eat seafood because it can cause birth defects and other serious problems. Small children shouldn't eat seafood because their bodies are small and more susceptible to the affects of Mercury. Some solutions to this problem might be to reduce the emission of other greenhouse gases which would then slow down global warming and the melting of Arctic glaciers. More work can be done to study where these toxins are coming from and find ways to reduce their release.

    Tracy Brooks
    Block 3

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  39. Methane gas gets trapped under the ice over periods of time and recently it is being released because the ice is melting. This releasing of gas is contributing to global warming. A toxin that is bioaccumulative stays in the environment without breaking down over time like most natural substances. People that are most affected by the mercury pollution are pregnant women and children because it can cause birth defects, brain damage and/or cardiovascular problems if eaten. Steingraber talked about this for a while in Nevada City. Mercury is not too dangerous in small doses but as it gets higher in the food chain the concentration increases. For this reason it is now recommended hat pregnant women and children under three not eat fish that have high concentrations of mercury. Some possible solutions to these environmental and human health problems are better,cleaner methods for combustion and mining that decrease pollution in our atmosphere. Fracking is also dangerous and should be avoided because it costs more money than it generates and it is harmful to the environment.
    Tricky Trevor Cobabe
    Block 2

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  40. Methane is being released into the atmosphere from the arctic by the ice melting and this is a concern because it can cause climate change. Mercury is coming from atmospheric forces and the flow of the rivers that carry the element into the arctic ocean. It is concentrating at the poles mostly because of the rivers carrying mercury into the arctic ocean. This is a concern because it may further increase the climate change. Bioaccumulative means that elements do not decompose and they stay in the atmosphere. The groups of people that are most affected by the mercury pollution are the people who live on the arctic ocean. Pregnant women should not eat fish with high mercury concentrations because it can cause birth defects. Children under 3 years old should not eat fish with high mercury levels because it might brain damage. Solutions to high mercury levels are recycling and avoid fracking.

    -Chas Reisinger

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  41. The levels of methane in the atmosphere have been stable until recently, as the melting of ice in the arctic is releasing significant amounts of methane that has been stored for thousands of years back into the earth's atmosphere. Mercury is also being released in the arctic due to it being enriched in the environment, then carried by rivers to the oceans where it's potency is increased drastically. Bio-accumulative: The biological sequestering of a substance at a higher concentration than that at which it occurs in the surrounding environment or medium. Due to the mercury increase in the arctic environment, indigenous people are at high risk for mercury poisoning. Pregnant women and children under 3 years old should not eat fish due to their state of health not being at full force when it comes to dealing with mercury; the smallest amount can have a huge impact on their bodily systems. A major solution would be to reduce the amount of gas-guzzlers in the world. Ban hummers.

    -Chris Walton,
    Block 2 Chem.

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  42. This comment has been removed by a blog administrator.

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  43. Scientists have now determined that methane is being released into the atmosphere as ice in the artic melts away, caused by global warming. Methane being one of the biggest contributors to the warming epidemic has now become a key issue. Mean while, mercury from coal combustion is being released into the atmosphere and then collects with the snow and water and is dumped onto the artic. From there it washed down river into the ocean affecting not only the animal species but it's human inhabitants. Bioaccumulation refers to the accumulation of substances, such as pesticides, or other organic chemicals in an organism. The bio accumulation of mercury can cause serious developmental issues with pregnant women and all humans, continued exposure to mercury can eventually kill you.Solutions to this issue is a government that is willing to put more time and effort into clean energy sources and not starting up companies with billions of taxpayers dollars and watching them fail.
    Austin Young Block 3

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  44. Global warming is causing the arctic ice to melt, which is now allowing ancient methane gas to be released into the atomsphere. This is a cause for worry, because the methane is a green house gas, which contributes to global warming. The mercury is being released due to the heating of arctic soil. This is a concern, because it means the mercury could begin spreading to the surrounding marine life. Bioccummulative is a type of substance that cannot be broken down, and therefore stays in our atmosphere. I think that pregnant women, small children are the most at risk for the mercury problem. I think that the amount of fish they eat should be regulated. The amount of greenhouse gases and other emissions can be controlled by what we do in our everyday lives, for instance: Recycle, avoid using your car unless it is absolutely necessary, use gas effiecient cars for long trips, etc.
    Mikaila Thompson Blk. 3

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