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What are the effects of global climate change on polar bears living in the wild?

Is global climate change impacting the migration patterns of polar bears living in the wild? Are increases in temperature causing a decline in habitable land for polar bears? Is global climate change impacting the availability of food sources for polar bears? In more extreme cases climate change has physically reduced the area of polar bear’s habitat forcing them to encroach on land inhabited by man. The questions this research will answer are what are the effects of global climate change on polar bears living in the wild? Is the loss of food supplies linked to global shifts in climates? Are declines in natural habitat connected to climate change? Is the decline in population numbers linked to changes in their environment as a result of climate change?

Researchers disagree that climate change is responsible for the changes in wild animal populations. Scientists argue over the cause of declining habitats experienced by some species of wild animals. Supporters of the global climate change side of the argument cite increased temperatures as the cause for a reduction in food and habitat while critics blame toxic waste and other causes for the decline.