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SDS Climate Change

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by s6wpe74gk
Last updated 2 years ago

Discipline:
Science
Subject:
Environmental Studies
Grade:
11

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SDS Climate Change

The graph is repressetning that the acrtic temperatures have been increasing in warmth over the last 50 years.

The Albedo Effecf

Since the 1970s the sea ice in the Arctic has decreased greatly. Temperatures haven risen almost twice as fast since then and are particularly intense. In 2012 the sea ice hit the lowest temperature level since 2007. Though there isn’t a set temperature the arctic in the 1960s it was 0 degrees Celsius, going off of that, in 2007 it was around 3.5 degrees Celsius. The arctic is becoming increasingly warmer and though the rise is slow, it effects a great deal of things. When the arctic ice melts, the bare rock and water take in more of the suns energy which makes it warmer, this is called the Albedo Effect. If the snow and ice is melting, the ability for it to reflect the heat back to space lessens causing global warming faster. The White Sea ice can melt in the summer leaving open dark waters exposed which absorb more heat from the sun and extra ice will melt. As the ice melts it turns into water adding to the already rising sea levels. Permafrost is thawing in the arctic and the plants and animals that were frozen in between them, begin to decay, as they decay they release carbon dioxide and methane back into the atmosphere which causes further warming. Since the changes to the temperature is extremely drastic it is unlikely to return to its pervious cold conditions. Earlier break up and melting of the arctic sea ice in the spring, later freezes in the winter, but it leaves the sea unfrozen for a longer period time.

This video doesn't directly relate to Climate change in the Arctic, but it has an effective message none the less.

Most global warming begins with people there are many ways to stop global warming, most of the things that people do increases global warming. There are things that people can do to stop global warming,⦁Use renewable energy, pick an energy supplier that generates at least half of its power from wind, solar energy and other clean sources.⦁Drive an efficient vehicle, drive a car such as a hybrid, because it will use less money and save gas. ⦁Driving less and carpooling saves money and time and releases less carbon dioxide into the atmosphere. ⦁Replace lightbulbs with a fluorescent light bulbs, they use 60% less energy than a regular bulb, the switch saves around 300 pounds of carbon dioxide ⦁Recycle organic waste, 3% of greenhouse gas is released through decomposition of organic waste, one of those greenhouse gasses is methane, one of the worst gas to be released, recycling the waste cuts down the released methane.Though most of the reasons for global are caused by humans some of the reasons for climate change are naturally occurring such as,⦁Volcanic eruptions, which can change the climate from when they erupt they cause a block in the suns heat cooling the earth for however long they stay burning⦁The suns radiation and the ozone layer, the suns energy warms the earth and then it reflects back to the sun, the atmosphere blocks that trapping the heat in while still allowing more heat into it, contributing to further warming of the earth, this is the greenhouse effect⦁Climate change also occurs when the biomes shift, the shift brings the boreal forest biome up towards the arctic making the tundra smaller, this shift allows more heat from the boreal into the arctic warming the arctic as well as decreasing the amount of sea ice.Human enhanced climate changeMost climate change we see is because humans are inducing the amount of greenhouse gases into the atmosphere. Because of these factors we see climate change getting worse because of the things that we do in our everyday lives. Some of these things include,⦁Burning fossil fuels adds carbon dioxide and methane into the earth’s atmosphere thus letting the earth warm faster⦁Pollution, effects the atmosphere which effects the climate change, it releases excessive amounts of greenhouse gasses which add more heat to the atmosphere and warm the arctic melting the ice.⦁Forest fires add to the warming of the biomes because as they burn they release carbon dioxide into the air and since its trees burning the carbon dioxide doesn’t get filtered through photosynthesis again and is left in the atmosphere

How does climate change effect animal reproduction and habitat loss in the artic biome over the last 50 years?

The Ways to stop climate change

Morgan Freeman Climate change speech

Most if not all sea birds will be impacted negatively by the decline of sea ice and changes to the communities that they are currently living in. In particular, Ivory Gulls have become dependent on the sea ice, as most of the other animals have. They nest and breed on the rocky cliffs, which also provide protection from predators and flying to the nearby sea ice to find fish to eat in the cracks. As the sea ice edge is declining it will have a negative impact and serious consequences are really likely to happen. Like the complete extinction of the ivory gulls which will continue to extinct other animal species. At the moment their population is declining with a 90% reduction over the past 20 years.

Many of the arctic animals such as polar bears, seals, walruses and seabirds rely on the seas biological productivity on the presence of sea ice, which depends on climate conditions. Most of the animals are being effected by the climate in the arctic which is getting warmer. Each animal has different things that they need to survive and if the ice keeps melting as it does the animals will lose their place to live as well as things they eat, essentially they would be losing their entire home as well as life.

As well as polar bears seals depend on the sea ice for a resting place and a place to be protected from predators. Most seals find their food, give birth and raise their baby seals, so as the sea is melting it’s endangering the way that the seals live. They became ice dependent and will have great difficulties adapting to ice free summers as well as warmer winters. Two types of seals are now considered at risk of becoming endangered because of the lack of sea ice.

Polar bears are only found in the arctic, they’ve never lived anywhere else and they have become dependent on the area. They use it for raising their babies, hunting and a place to protect them from predators. They need it to travel form one place to another. The baby’s survival depends on their mother’s success of hunting and depends on the sustainability and extent of the sea ice. Since the polar bears food dwells on the sea ice, as it lessens, females go longer without food which impacts their reproductive success. They are already an endangered species so if they aren’t reproducing then it puts them in more danger of going completely extinct. If it becomes so bad polar bears are going to have to adopt a land based lifestyle, they’ll have to learn to interact with humans as well as brown bears or grizzly bears. Meaning they’ll eventually have to breed with them.

The arctic is warming faster than the rest of the world because shiny ice and snow reflect a high proportion of the suns energy into space. But because of the increasingly warmer temperature, but if it increases by even two degrees it will melt the ice faster which can increase the carbon dioxide in the water. This will give the oceans a 30% more acidic ph level killing most of the aquatic animals. But because the Arctic Ocean is already cold and they acidify twice as fast adding more to it will affect the development of coral reefs and other small ocean life. In the past 50 years the global warming can be attributed to human activities such as burning fossil fuels. But the recent warming of the arctic is effecting melting glaciers sea ice permafrost and rising sea levels. If the greenhouse effect continues to melt the ice which give higher water levels, the Arctic levels melting will lead to a snow coverage of the entire world. Climate change might not seem like a huge problem but if the ice is melting other animals can’t support their lives and will eventually die off if they aren’t able to live there, if one type of species are removed from the food web then the rest of the ecosystem will die off leaving the arctic an unlivable, unsustainable place to be.

⦁Artic climate is unlikely to return to pervious conditions⦁Economic impacts can be catastrophic ⦁the frozen ground has started to thaw releasing methane into the atmosphere

⦁Environment: if the sustainability of the environment in the arctic is set at a level in which the temperature lets the ice stay frozen and the animals have a sustainable amount of ice to live on and raise their cubs or babies. Though the ice is melting if it stops or slows down it will allow time for it to become sustainable again, it can become sustainable again connecting the environment sustainability to global warming.⦁Social: the social sustainability to global warming can be connected by the fact that if it continues at the rate it is going then the polar bears will have to relocate and mate with other bears, this could lead to contact with humans. it can also be related because the arctic acts as a the refrigerator to the rest of the world, it gives off more heat than its absorbing from the outside which cools the planet, but temperatures changing in the arctic effect the rest of the world, which affect the way we live, effecting us socially.⦁Economic: global warming is effecting the world largely, if the ice continues to melt it will be harder to keep the economy of the world at a sustainable amount for the rest of the world. The permafrost melting thaws plants and animals that have been trapped there, this releases methane into the atmosphere causing more instability in the economic issues that were already experiencing. They take money from different places and some pension funds and insurance companies are experiencing considerable difficulty. The cost they spend trying to prevent climate change is far more excessive of the cost of preventing it.

⦁The winter temperatures are rising more rapidly than summer temperatures⦁There are positive feedbacks that are occurring in the arctic which is called arctic amplification. ⦁If the warm temperatures make the arctic growing season longer more plants can survive and take up carbon from the air⦁Most positive effects outweigh the negative effects

Positive and Negative


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