[ 10 ]. Margaret Blunden, “The New Problem of Arctic Stability,” Survival, Volume 51 no. 5 (October-November 2009), 121.…
Arctic tundra is a biome characterized by cold weather and low growing plants and shrubs and virtually no trees. They are found mainly in regions just below the Arctic ice caps, located at latitudes 55o to 70o North, across North America, Europe, Alaska, Canada and Siberia. They cover 20% of the earth’s surface. The summer season is short, where there are brief periods when the sun shines for almost 24 hours a day and temperatures never go above 45o or 50o F. In winter, temperatures don’t reach above 20o F and average between -20o to -30o F. Tundra biomes receive low levels of precipitation, around 150 to 250 mm of rain per year. Due to the harsh climate, vegetation such as low shrubs, sedges and reindeer mosses have adapted by growing close to the ground and close together, as this helps plants to resist the effects of cold weather and reduce damage caused by snow and ice. Plants are also small and roots are shallow to skim the thin unfrozen layer on top of the permafrost (a thick layer of soil that remains frozen throughout the year. Permafrost is also the reason why there are virtually no trees in tundra biomes, as not enough moisture can percolate the soil). However, in the summer months the top part of the soil partially thaws, forming bogs and ponds, allowing some vegetation to grow.…
Permafrost has a big affect on the soil in the tundra due to this most of the arctic ground is frozen year round in some places in the arctic the ground get warms of enough and the permafrost melts this creates shallow lakes this can cause en explosion of flora and fauna…
The working groups in the Arctic Council act as scientific bodies by documenting challenges the Arctic faces and by publishing scientific reports regarding the effects of climate change in the Arctic. These effects greatly impact the Arctic, as even minor changes in annual temperatures can impact Arctic life. Increasing temperatures result in the loss of Arctic fisheries, increased forest fire threats and storm damage to coastal communities. Oceans in the Arctic “are acidifying twice as fast as average,” interfering with the survival of shellfish and other marine species. A study done by the Arctic Council found that “sea-ice in summer months has declined by 15-20% over the past thirty years” .…
The article discusses the predicted rate of global warming, which could be affected by global feedback mechanisms such as the alteration of ocean currents due to meltwater, the release of carbon dioxide and methane from permafrost in Alaska and…
Global Warming is a problem that impacts the entire planet. The average temperature of our planet has risen about 0.5°C in the last 100 years. According to field biologist Wolter in 2008, the melting of permafrost in the colder regions of the world is mostly responsible for global warming; causing the world’s climate to be at risk. (Wolter, 2008)…
According to national geographic, water accounts for eighty percent of the natural greenhouse warming and the other twenty percent is due to gases present in small amount such as carbon dioxide, methane, nitrous oxide. Carbon dioxide is the big absorber of sun rays, it is released through burning of fossil fuels and emissions from cars which increase the amount of carbon dioxide in the atmosphere leading to increase in temperatures. An environmental effect of global warming is high temperatures that lead to changes in water cycle. This explains the fact mentioned by Mc Kibben in his article, ‘the Arctic has melted with stunning speed the last two summers and the pH of the oceans has shifted dramatically just in the last decade’. Increase in temperatures due to rising carbon dioxide levels will cause the ice in Polar Regions to melt off quickly and upset our water cycles, leading to ocean level rising and increase in the level of diseases. In order to stop global warming much has to be…
Within the article "Glaciers Disappear in Before & after Photos" from the live science website, and "The Effects of Melting Ice Glaciers" from the buzzle website, they express the important role glaciers play as one of earth’s natural resources. Glaciers not only provide for about 75% of the world's fresh water. They are also a source of electricity and a replenishing source of water to the oceans as they are continuously evaporating. The article on the live science website pointed out that the clear ice does not absorb and retain heat as rapidly as the ice that is darker, imprinted with dust and soot from the burning of fossil fuels, forest fires and volcanic ash. This plays a significant role in the rapidly melting of the glaciers. The most significant and saddening elements are the effects on the human and animal well being when the glaciers disappear faster than nature had intended them to. With the glaciers melting, humans that depend on the glaciers for water consumption and an agricultural water source as well as their electricity source will and are beginning to suffer. As the glaciers disappear, the polar bears are losing their source of travel as the ice bergs no longer cover the sea between one land source and another for them to travel on. The oceans are rising making them deeper, effecting all marine life and the birds that depend on it for their food source. The rising ocean will reform the coastlines making it difficult for animals as well as humans to access to their food and travel source. I’ve just looked at the beauty of the glaciers, never thinking of the hardship they will produce as they…
This article, for me, was essential in proving that arctic ice heating up is a problem. It gives me evidence that I can use to prove to disbelievers of global warming and their effects that in time places such as the poles could indeed end up with a complete change in climate and scenery. It not only tells of climate problems of the future but that of the present which helps to prove that it already is a bigger problem than most people expected. All-in-all, this article portrays to readers the effects of a warmer world on the arctic. The Australian is Australia’s only broadsheet newspaper and is led by highly credible and experience journalists.…
Climate change in the Tundra will cause very alarming problems that hold the potential to affect the present generation and those to come. Climate change is an adjustment of global or regional weather patterns. The Tundra has a frigid climate, frozen soil, and animals such as lemmings and polar bears. Additionally, there are flowers and grasses throughout the land. Nutrients for such plants come from dead and decomposing biological matter. Essentially all the precipitation is in the form of snow due to the average temperature of approximately 7.75°F (Google.com). Despite efforts to reduce carbon emissions, the permafrost is melting at startling rates due to human interference.…
Climate change is a major issue for rocky shores and the habitats and the species that live amongst it. A certain issue under climate change is ocean acidification, and this refers to a reduction in the PH levels within the ocean over an amount of time, caused mainly by the uptake of carbon dioxide from the surrounding atmosphere. For 200 years or even more the concentration of carbon dioxide has increased in bigger amounts due to the changes in the land use and the burning of the fossil fuels has had a major impact on the atmosphere. The big problem with this is the fact that 30 percent of the carbon dioxide produced is absorbed by the ocean. When the carbon dioxide is absorbed by the sea water, a chemical reaction occurs, which results in an increase of hydrogen ions. The ocean acidification impacts all species differently it can either help them or effect their living conditions. Algae and seagrasses can actually benefit from higher percentages of carbon dioxide in the ocean, as being a plant they require more CO2 just like plants that are on land. The species that have the most effect on them would definitely be calcifying species, when these are risk it impacts the food web because they are the primary animals…
8. b) Global warming has lead to a rising increase in temperature causing the ice sheets in the arctic to rapidly receded. Ice sheets melting is meaning there is a loss of habitats for the arctic animals such as the polar bears and walrus who live on the ice, gradually this will make the polar bears become extinct as…
2 g) A lot of methane is locked up as hydrates in the tundra and in the mud of the continental shelves. If the greenhouse effect is beginning to warm the oceans and if it starts to thaw the permafrost then it could eventually start to melt those ices.…
Climate changes occur naturally over long periods of time on Earth, and it has been this way throughout Earth’s history. Currently, anthropological influences on earth have triggered a quickening rise in global temperatures and this in turn is causing a rapid change in earth’s climate. One of the major changes currently happening on earth is the melting of the polar ice caps. Major impacts relating to the melting of the polar ice caps include changes in ocean temperature, changes in ocean salinity, sea level rise/ flooding, changes in ocean circulations, loss of biodiversity, and loss of ecosystems as well as their services. All of these impacts could lead to devastating consequences for many…
Some may argue that ice and glaciers have been growing and receding for hundreds of years, but they will always grow back again. However, for the past 100 years though, arctic ice and glaciers have been decreasing at an alarmingly fast rate. Glaciers have slowly been getting smaller and smaller since the 1960s and has been decreasing at a faster speed over the past 10 years. The rising ocean level has been a major consequent of the ice melting (Climate Change Indicators: Snow and Ice). NASA stated recently, “September Arctic sea ice is now declining at a rate of 13.3 percent per decade, relative to the 1981 to 2010 average” (Global Climate Change). The constantly warming atmosphere is causing ice to melt and bringing…