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B)Why is the polar bear so badly affected?

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B)Why is the polar bear so badly affected?

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Because polar bear live in the Artic and they live in extremelly cold temperatures and now ,more and more ice melts and is warmer.

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A)Find information about the reduction of Arctic ice in recent years.

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A)Find information about the reduction of Arctic ice in recent years.

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Average Arctic sea ice extent for November set a record low, reflecting unusually high air temperatures, winds from the south, and a warm ocean. Since October, Arctic ice extent has been more than two standard deviations lower than the long-term average. Antarctic sea ice extent quickly declined in November, also setting a record low for the month and tracking more than two standard deviations below average during the entire month. For the globe as a whole, sea ice cover was exceptionally low.

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As a result of global warming ,every summer less and less of the Artic Ocean is covered with ice .This situacion is good for creating new shipping routes;but it could be fatal for the polar bear .Work in groups:

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B)Do the experiment and say what happened?

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B)Do the experiment and say what happened?

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In the experiment happen that the water level is rising because the warm water molecules are bigger than cool ones.

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A)Think about what will happen when the ice has melted.Will the water level go up,go down or stay the same?

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A)Think about what will happen when the ice has melted.Will the water level go up,go down or stay the same?

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We think thet the water level go up.

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GLOBAL WARMING IN GLACIERS
One of the effects of global warming is the rise in sea level.Melting ice from glaciers contributes to this because it ends up in the sea.The hypothesis:Do melting icebergs make the sea level rise?
To test this,put water into a beaker ,add two ice cubes and note the level of the water before and after the ice cubes have melted.

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C)Do you agree that global warming is happening?What evidence can you give to sipport your opinion?

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C)Do you agree that global warming is happening?What evidence can you give to sipport your opinion?

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*Yes,because some animals in the North and South Pole are  extinguishing because the ice is melting through the Sun.

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Polar Bear

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A) What does the image make you think of? What is about?

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A) What does the image make you think of? What is about?

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*The picture shows the global warming in the artic.
*The picture is about a polar bear in the north pole

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B) What does the text on page 44 tell you about global warming?What are the consequences for the polar bears for the way of life?

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B) What does the text on page 44 tell you about global warming?What are the consequences for the polar bears for the way of life?

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*Polar bears depend on ice.
Sea ice their habitant,where they hunt for food,mainly seals. They cannot catch them in the water because seals are much better swimmers than they are.
The frozen ocean is just a thin layer of ice on top of liquid water thet is full of life.
*Only humans, and on rare occasions, other polar bears. Some scientists hypothesize that food stress is increasing acts of cannibalism, which has historically been a natural, but infrequent event.