Polar Bears and Global Warming

Topics: Polar bear, Arctic Ocean, Arctic shrinkage Pages: 3 (900 words) Published: May 1, 2013
Gillian Golub
R. Yessick
English 102
February 12, 2013

Society has not always been accepting of the theory that is global warming. Skeptics and non-believers have been denying the reality of global warming from the start, but now that the predicted effects of this phenomenon have presented themselves, skeptics of the theory are dwindling. One very obvious effect of global warming is the melting of the polar ice caps. Humans are constantly producing green house gases that are destroying the ozone layer. The harmful rays get past the protective o-zone layer, and the Earth’s temperature rises. This global climate change has made it difficult for the animals in these regions to survive. One animal whose home is rapidly disappearing is the Polar Bear. This change in temperature is melting their white icy prairies that the polar bears desperately need to survive. As the polar bear’s habitat diminishes, so does the polar bear’s population. In order to protect the polar bears, humans need to make a valor effort to reduce the amount of pollution and greenhouse gases that we produce.

Polar bears are one of the many species that are being affected by the polar ice caps melting. “Sea ice is the foundation of the Arctic marine environment. Vital organisms live underneath and within the ice itself, which is not solid but pierced with channels and tunnels large, small, and smaller. Trillions of diatoms, zooplankton, and crustaceans pepper the ice column. In spring, sunlight penetrates the ice, triggering algal blooms. The algae sink to the bottom, and in shallow continental shelf areas they sustain a food web that includes clams, sea stars, arctic cod, seals, walruses--and polar bears (McGrath, Para. 4).” These magnificent bears depend on the tundra to provide a frozen landing for hunting and taking a break while swimming far distances. Most bears live their entire lives out on the ice and only visit land to build birthing dens; however, as the ice continues to...
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