I just saw on the news that polar bears have a shorter hunting season because of warmer temperatures. Glacier National Park will not have glaciers in less than 50 years. Birds such as robins are now found in parts of Alaska that they were never seen in before, as well as other species.
210940
The massive ice sheets in the Arctic are melting at alarming rates. This is causing the oceans to rise. Rising ocean levels, an estimated six feet over the next 100 years or sooner, will cause massive devastation and economic catastrophe to population centers worldwide.\n\nMalaria. Dengue Fever. Encephalitis. These names are not usually heard in emergency rooms and doctors’s offices in US. But if we don’t act to curb global warming, they will be. As temperatures rise, disease-carrying mosquitoes and rodents spread, infecting people in their wake. Doctors at the Harvard Medical School have linked recent U.S. outbreaks of dengue (‘breakbone’s) fever, malaria, hantavirus and other diseases directly to climate change.\n\nSuper powerful hurricanes, fueled by warmer ocean temperatures are the “smoking gun” of global warming. Since 1970, the number of category 4 and 5 events has jumped sharply. Hurricane Katrina, in September 2005 almost became a category 6 event. Human activities are adding an alarming amount of pollution to the earth’s atmosphere causing catastrophic shifts in weather patterns. These shifts are causing severe heat, floods and worse.
597833
Austria - It is one beautiful country. It is relatively central. And it's too close to something being in Asia again (remember that Bejing is in the summer of 08). And Russia is simply not ready. Besides - winter sports in the Alps? Can't think of any better backdrop!
108614
It is the dawn of a new season for the sasquatch.I think now thru around mid june is a good time to set eyes on one based on the thing coming down to feed.I found a picture of hair samples from last season's sightings that can not be explained that I know of.Also a couple lawmen sighted one they claimed in I think it was colorodo.
247714
The Arctic and Antarctic are literally poles apart. While they share some characteristics, such as high latitude, cold and remoteness, they also exhibit significant differences. The Arctic is dominated by a large deep central ocean surrounded by land masses. The Antarctic is a large, partially ice-covered land mass surrounded by ocean. \n\nEnvironmental Differences: \nThe Arctic has trees but Antarctic does not\nAntarctica is a continent land mass but the Arctic is a sea with edges of other countries in the Arctic circle.. \nThe Arctic has indigenous people and the Antarctic doesn't. \nThe Arctic has tundra but not the Antarctic\n\nWeather differences: \nAntarctic has strong winds but the Arctic has mild winds. \nAntarctica is colder and windier than the Arctic\n\nAnimal and Plant Life differences: \nThe Arctic has polar bears and the Antarctic does not. \nThe Antarctic has penguins and the Arctic doesn't. \nThe Antarctic has no trees. \nThe Arctic has Tundra with rich plant life in Spring and Summer. \nAntarctic has algae but not the Arctic. \nAntarctica has mainly calm animals but the Arctic has some fierce ones\n\n\nHuman Activity Differences: \nThe Arctic has Eskimos and Antarctica does not. \nThe Arctic has igloos and Antarctica does not. \nLong ago, Laps and Eskimos used the northern polar region but nobody lived in the southern polar region. \nThere are towns in the Arctic but not in Antarctica - just research bases. \nAntarctica wasn`t found for a long time when the Arctic was already found. \nWhen the sea is free from the ice in summer in the Arctic the hunter goes after seals.
144450
There are a number of things that might be looked for in core samples of glacial ice that has accumulated over hundreds of years. \n\nThe gases that are dissolved in ice hundreds or thousands of years old can be compared to the gases in today's atmosphere to draw inferences about greenhouse gases and climate. So you might have climatologists. Microbiologists might be looking for extinct microorganisms. Many arctic areas were once tropical or temperate (plate tectonics, continental drift, and all of that), so paleontologists could be looking for fossils of long-extinct tropical plants and animals in an icy terrain. Maybe even dinosaurs.\n \nA palynologist might be looking for pollen in the core samples of ice, or in strata of soil under the ice to confirm a range of dates to help establish timelines of fossils found in other locations.\n\nPersonally, I'm rooting for the palynologist!
199313
an ice age increases the coverage of ice on the planet which obviously makes it colder.. but also means that radiation from the sun is reflected back into the atmosphere making it cooler again and perpetuating the ice age. precipitation also decreases, ie it rains and snows less (antartica is the driest continent in the world). wind is produced by air currents which are created by warm air rising in various patterns around the globe, so wind patterns would alter which would also affect the climate. additionally ocean currents would be altered by the increase of ice and colder waters, which would again alter the climates in maritime areas
645040
No, The mutations occur naturally they are the ultimate source of diversity. The only holes in the Ozone layer are over Antartica and they are healing due to enviromental sanctions. Polar Bears will eat anything they get their hands on just like any other bear. But if you think of it we are in a mini ice age the world is much cooler than it normally is and the world goes through these cool-down warm-up stages every few hundred thousand years. But the warming has increased over the years with very little effect coming from humans.
231722
It depends.. iF htey live there all year round they have layers fo fat called blubber\nthey also have fur... polar bears have clear fur to collect heat and light and warm the bears. \n\nif they are travelling inbetween cold and warm( like humans d0)\nthey do things like shiverring and teeth chattering, also the blood rusehs to the skin to warm and away from the ears adn the feet to keep the inner organs warm
315445
Yeti, since he "lives" in a cold place, he is probably bigger and more tenacious since he has to work harder to get food. Look at bears, polar bears are bigger & fiercer than bears that live in the woods.
627572
Where's the challenge?\nI suggest you club polar bears. I hear there's more money in it.
266275
i think it might of been the start of the extinction and possibly other factors as well.   through out time animals adapt so it is possible that the meteor hit along with the rapid climate change caused this all the happen or appear to happen at once.   how do we know that the extinction was not already in progress before the meteor hit.   i don't think we will ever know.   Science is fact and a little bit of art when they come up with these ideas.
517348
If you can catch one, though that may be violating animal harassment laws. No penguins in Alaska though, try the other hemisphere.
538204
It's a myth that baby seals are still killed. Juvenile seals are still harvested. It's got nothing to do with sport, it's mainly to reduce the seal's predation on fish stocks and the income for sealers is a bonus. It's not as if anyone claims that harp seals are an endagered species. If anything, there are more of them now than ever. If it's morally wrong to kill juvenile animals, then the veal and lamb industry is a lot larger offender than the seasonal sea hunt. If someone went to rural New Zealand and told them to leave those sheep alone, they would be told to go get stuffed. Why are people so suprised that folks in seal-hunting areas feel the same way?
140655
There are no polar bears in Antarctica.  There are some seals and sea lions there.
230335
The next ice age is not going to happen for a very long time, there was only one a few million years ago. What could make it happen is a nuclear war or asteroid collision with the earth.
473912
Assuming it's true, then it's probably because of creatures' abilities to adapt to their environments.  Over centuries, evolution and genetic mutations and such allow different species to form, to become most suitable for their habitat.\n\nHowever, I'm a bit doubtful that a snake, a cold-blooded animal, would be able to survive in such a cold region....
427605
Actually the scientific community hasnt definitively decided yet what should or should not be classified as "true" hibernation. Compared to ground squirrels a bear seems to be only in a light sleep, but both animals go through similar process to get ready for winter etc... \n\nExcerpt from Wikipedia...\nOne animal that some consider to be a hibernator is the bear. However, the degree of metabolic depression is much less than what is observed in smaller mammals and many prefer to use the term denning. The bear's body temperature remains relatively stable (depressed from 37° C to approximately 31° C) and it can be easily aroused. In contrast, hibernating ground squirrels may have core body temperatures as low as -2° C.