Polar+Bears

Global Warming has affected polar bears, because climate change results in glaciers melting destroying their habitats.Threatened Species Marine Threatened Species

Polar bears, the largest land carnivore and the largest bear of all are today endangered due to human misconducts. Not only animals are being killed due to human hunting emerged from greed, but these cute animals are dying from global warming resulted from human extreme and uncontrolled anthropogenic pollution. Polar bears are the most affected by this new world problem, because it resides in the Arctic circle where the temperature is emerging quickly, melting the ice, destroying their habitat where theses animals den, breed and hunt. Carbon dioxide and other greenhouse gases are the pollutants in the atmosphere resulting on this climate change constantly warming the region. Scientists predict by 2040 there will be no ice in the Arctic region affecting polar bears distribution and their overall numbers changing the whole ecosystem. Actions have to be done urgently to revert this damaging environmental process that is harming such good animals that balances the ecosystem. It is very important for people to understand the harm they are doing to the world every day when they pollute the atmosphere with gases these gases that can be reduced to save not only the polar bears, but many other animals as well.

__** Scientists **__ Dr. Steven C. Amstrup is a well known scientist in the polar bear's research and the effects on this animals caused by Global Warming. He first worked for 30 years in U.S Geological Survey in the Alaskan Science Center and now is working for the Polar Bears International. He is today the most expert scientist working with polar bears and he is sharing information together with other scientists from all polar bear nations, to understand better what is going on with each group on every part of the Arctic. The first conclusion they reached is that today the polar bears are much more affected by climate change than any other thing, despite hunting being a big problem in the old days today nations are able with laws to ban and diminish such operations. They concluded that part of the Arctic ice is retreating during the summer and this parts are the region where the polars bears go to because they have the biggest number of preys, so this region is moving apart and the polar bears are stuck without food. And if they are not stuck outside, these animals are going to be stuck in land without food as well in summer. So Dr. Amstrup is sharing information so that together with other nations they can manage these polar bears by putting the spread groups together, diminish the number of greenhouse gases that are resulting in global warming and many other solutions that are going to solve the polar bears problems.

Permafrost - frozen subsoil, mainly were polar bears create their dens Sea Ice (Arctic)- Iced region over the ocean where polar bears reside Den - Shelter for polar bears Anthropogenic pollution - pollution caused by human beings Carbon Dioxide and greenhouse gases - pollution generated by humans resulting in global warming affecting negatively the polar bears
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__**Articles**__ [|Polar bears affected by climate change] This article shows how countries were polar bears reside are concerned with the situation faced by this animal, due to the warm temperatures shrinking the sea ice. Due to the human pollution, scientists believe that each year the Arctic temperatures will get warm and that by 2040 its summer is predicted to have no ice. Sea ice loss is affecting polar bears and the ecosystem, since it is destroying the place where they hunt, breed and den, resulting in their reduced amount and not well distributed. It shows that polar bears can be saved by reducing human pollution. Even in winter polar bears are moving from sea ice to den in land areas and bears are stranded in land due to long summers not allowing ice pack to be permanent. Permafrost has declined, allowing dens to be destroyed with forest fires and to be collapsed with rain in summer. Shorter hunting periods due to lack of ice result in the decrease of polar bear population. Less cubs are surviving and polar bears adaptation is occurring reducing adult males weight and skull size.

[|Polar bears Study] This article states the dependence of the polar bears in the Arctic ice, using formulas and researches it shows how this animal is affected by the climate change.

[|Global warming and polar bears] One more article defending that polar bears and other animals are being negatively affected by global warming. Polar bears are declining population throughout the Arctic regions, and its food supplies are also diminishing as a result of warmer temperatures.

[|Climate change Polar bears] Contains different facts stating how climate change is affecting different regions of the world and how its is affecting negatively the polar bears. Shows how this issue has to be dealt seriously and measures have to be taken as sonner as possible.

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