Polar Bears Dying Out!
91How does climate change affect the polar bear’s population and behavior?
I ONCE CHOOSED TO WRITE A REPORT ON GLOBAL WARMING AND IT'S EFFECTS ON POLAR BEARS FOR A SCIENCE PROJECT. THIS IS WHAT IT CONTAINED:
Summary: Global Warming has been a threat for over 50 years. It causes the earth’s temperature to rise. This change in temperature affects all life on earth. Especially in the Arctic; the home of the polar bears. Global warming is forcing polar bears to change their behavior in order to survive in their melting habitat.
ABOUT POLAR BEARS:
- Has white fur which they use for camouflage. The fur also protects them from the arctic cold.
- Female Adults: Weight about 400-500 pounds. They grow up to be an average of 6ft long.
- Male Adults: Grow up to be 8ft to 11ft long. They could even weigh up to 1,000 pounds.
- They hunt seals and walruses, but they mostly eat ringed seals.
- They have long bodies.
- They are great swimmers. They have a strong sense of smell. They can smell food from 10 miles away. They can sniff out their prey under thick layers of ice and snow.
- Female polar bears usually give birth to twin cubs.
- A polar bear gives birth during late November or early December.
- A pregnant females will occupy an empty den from October to April.
- At birth cubs weight 1 1/2 pounds.
- At birth they are only 10inches long.
- Most cubs live with their mothers for up to 2 years.
- Wild polar bears have the ability to live up to 33 years of age.
- Captured polar bears can live longer than 33 years.
- There are about 20,000 to 25,000 polar bears left in the world.
- They rarely attack humans.
- Before humans used to hunt them for their fur and meat.
Laws that Protect them
In the past polar bears were hunted for their fur and meat. This caused a great decrease in the polar bear’s population. Now many countries had made up laws that helped these creatures from being extinct. Like the Marine Mammal Protection Act of 1972. It prohibited any body from hunting, killing, or harassing any species of marine mammals. The animals protected by this law include: dolphins, whales, seals, sea lions, polar bears, mentees, dugongs, and walruses.
A DANGER TO THE WORLD
- Global Warming is caused by heat-trapping gases like: Carbon Dioxide, greenhouse gases, methane, etc.
- Global Warming is causing the following problems:
- Air pollution
- Smoke
- Harsher or constant storms
- Warmer water temperature
- Spreading of insects
- Floods
- Fires
- Rise in sea levels
- Heavy rain, water shortage, and increase or decrease in populations.
- Greenhouse gases are constantly being released by factories and cars. These gases cause air pollution and smoke. This results in poor air quality. The heat is drying out water, causing droughts, heat waves and fires. The increase in temperature is causing ice glaciers to melt, which in turn causes landslides and floods.
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The arctic ice has been decreasing each year. At first, it was only decreasing by a small amount, but now the decrease in ice is becoming a great problem. So bad in fact, that by the year 2030 or probably sooner, the Arctic Ocean will become ice-free. From the years 1980 to 2008, the ice has decreased by 1.2 million square miles.
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Global Warming is melting the ice glaciers in the arctic. The melting glaciers than become water and becomes part of the arctic sea. This causes the sea level to rise. Glaciers are a large moving mass of ice and snow.
Conclusion:
Since the Arctic Ice is melting, they need to find new forms to hunt. Especially since, they depend heavily on the ice to hunt and travel; polar bears will most likely be the first species to be put on the endangered list because of global warming. Global warming is reducing the number of surviving cubs, and taking away their environment. These are the reasons why people are frequently reporting polar bear sightings on land. The polar bears are now eating plants found on land. This is considered bad since the plants do nothing to help with their energy supply. Other alternatives for food the bears are using are hunting reindeers, and already killed bow-head whales. Both the North and South hemisphere are being affected by global warming, especially the Northern Hemisphere. The reason why it is being affected more is because it has more land. Moreover, land is able to warm faster than the ocean. The greenhouse gases and other heat-trapping gases are causing the ice to melt to further progress. In turn, this causes an increase of warm air; warm air is able to holds water vapor that make up clouds, and this causes to keep more heat in the arctic.
Bibliography/Sources:
National Geographic Society. “Twilight of the Arctic Ice” and “Arctic Ocean: The Unexpected Frontier,” National Geographic Magazine, May 2009
“Global Warming” http://www.ucsusa.org/global_warming/
“Some of the Major Laws Protecting Endangered Species” http://www.earthtrust.org/wlcurric/appen2.html
“Glaciers and the Glacial Ages” http://www.uvm.edu/whale/GlaciersGlacialAges.html
“ESA Listing Not Needed for Polar Bears” http://www.heartland.org/policybot/results/20631/ESA_Listing_Not_Needed_for_Polar_Bears.html
“Why Glaciers” http://nsidc.org/glaciers/information.html
The Topic: Glaciers“ http://42explore.com/glaciers.htm
“Effects of Global Warming“ http://www.woottonwebdevclass.com/webdevlcass/Lim_Ketnita_MP3Project/Global%20Warming/index.html
http://earthobservatory.nasa.gov/Features/GlobalWarming/
http://technorati.com/r/tag/global-warming
http://www.latimes.com/news/local/la-me-polar15-2008may15,0,3046744.story
http://www.latimes.com/news/local/la-me-polar15-2008may15,0,3046744.story
http://bbs.keyhole.com/ubb/ubbthreads.php?ubb=showflat&Number=1095565
http://dsc.discovery.com/convergence/globalwarming/globalwarming.html
http://www.americazoo.com/kids/arctic.htm
http://thomonthenet.com/Alaska2006/Alaska9999a.jpg
http://www.r10net-seo-yarismasi.com/resimler/Global-Warming.jpg
Global Warming
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I enjoyed reading your hub, I love Polar bears, cute aren't they? The point is we really should be more concerned with helping them and aware on how our choices are effecting them. :)
This in UNBELIEVABLE bull crap! Polar Bears are fine. Scientists say that the polar bears are starving to death because the lack of ice does not give them enough hunting ground so they cannot catch there food but you clearly stated above that polar bears are incredible swimmers, so they can swim to get their food. Furthermore Glaciers in Greenland have recently been shown to be getting thicker, not thinner. Same with antarctic ice, which is never mentioned by warming alarmists. Also Sunspot activity is in a cycle in which it reduces warming radiation from the sun, which is actually causing a cooling cycle. The polar bears are fine, calm down.
Thanks a lot, this was great!
The Native people who actually live amongst the polar bears say that the number of these large carnivores are actually GOING UP!
Who do you believe... the scientists who parachute in for a short time or full time residents who's way-of-life has interacted with polar bears for millennia?
this thing helped me with my homework a 10 point from england and these nagtive people ahhh killing polar bears ahh back to them i love polar bears even i can' see them
I have seen polar bears - mom and two cubs - one word - CUTE. A memory I will always cherish.
A good hub - global warming is a new term - but global warming has been around for thousands of years! Fourteen thousand years ago there was thirteen thousand feet of ice covering the area now occupied by Seattle, WA. How long do you think it took to melt all of the ice? And all of the ice extending all the way up through Canada and Alaska where only the peaks of the mountains could be seen? And how many cars, and factories and human fires did it take to help melt it? We live in a fascinating world - keep exploring......
i dont really care i dont care just cheack my face book lauryn moore
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its about polarised bear and was helpful
Some people will believe anything, including this.
Global warming is really a matter to be worried about. People should take the necessary steps to stop it. http://www.xviews.info/tag/global-warming/
Global warming and global cooling are natural phenomenon which have always happened and always will. Neither is man-made and they have absolutely nothing to do with CO2 emissions.
AND . . .your beloved cuddly polar bears are doing just fine.
AND . . .the Arctic Ice retreated for a few years but is now INCREASING.
Soon, we will be complaining that there are too many polar bears and want to start culling them. Watch out!
when you try to create an equation based on cause and effect it may be already accomplished.
Was it not the change in the planetary weather which is to blame for the death of the dinosaur?
I am not saying that greenhouse gases are not a contributor to the effect ... if you have ever been around the essence of methane on a beef cattle farm - I bet there is a significant contribution factor there.
Perhaps more people should hunt wildlife than raise cattle in the confines of a geographically specific fenced in pasture.
.... just a thought!
A great hub and thank you so much for sharing.
Take care
Eiddwen.
rawr
rawr
polar bears are fuzzy and nice to me i want to squeeze them like i did to my puppy untill he died :(
Ja, ja, das ich wunderbar.
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this is coooooooool and feels ggoooooddd
love polar bears!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
this is the best hub EVER I LOVE POLAR BEARS
we can help theme o icook :)
Global warming and cooling has been going on for the entire history of the Earth. The scientists who analyze ice core samples can tell you that. Since the planet has had way more dramatic warming and cooling for millions and billions of years(Carboniferous Period, Ice Age, etc), without people even existing to cause it, why is it that we now say that it is our fault when we have miniscule changes? BTW, if polar bears are protected by a MARINE mammal protection law, then why do we worry about them not having enough ice? They can swim, and they hunt SEALS
I think polar bears are indangeded and we should save them so please help them because they are dieing
this is sad my heart is about to fall out of my butt...
People sure love to jump on the Al Gore bandwagon don't they? Use common sense and research your brains out and you will come to the right conclusions.. BRAINS PEOPLE.. it's what separates us from the sheep you all so obviously are trying to become..
i am doing this for my pyp topic. thatnks a lot, you helped me! :)
Benz B 2 years ago
Nice hub. I really enjoyed it. please go by this hub and vote for my hub called "the junk car man". Thanks.
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