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Polar bear, why is your world melting?

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210408s2008 ilua j 000 0 eng d

005		20220715153311.0
010		\|a2008001308
020		\|a9780807565995\|q(pbk.) :\|cNT$280
040		\|aKCIS\|beng\|cKCIS\|eAACR2
041	0	\|aeng
043		\|ar------
082	04	\|a363.73874\|bW455\|223
095		\|aLX\|bLEEB\|cXE0011745\|dP\|eW455\|pEE\|y2008\|tKCL
100	1	\|aWells, Robert E.
245	10	\|aPolar bear, why is your world melting? /\|cRobert E. Wells.
260		\|aChicago, Ill. :\|bAlbert Whitman & Co.,\|c2008.
300		\|a1 v. :\|bcol. ill. ;\|c18 x 27 cm.
520		\|aLearn why the Earth is heating up and threatening the polar bears.
650	0	\|aGreenhouse effect, Atmospheric\|vJuvenile literature.
650	0	\|aGlobal warming\|vJuvenile literature.
650	0	\|aIce\|zArctic regions\|vJuvenile literature.
650	0	\|aClimatic changes\|vJuvenile literature.
650	0	\|aPolar bear\|vJuvenile literature.
651	0	\|aPolar regions\|vJuvenile literature.
982		\|aGrades Pre-3
990		\|aAges 4-8
993		\|a5.4

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In the Arctic, the summer ice is melting, making it hard for polar bears to survive. Why is the world getting warmer? The heat of the sun is trapped by the -greenhouse- gases that surround Earth--carbon dioxide, methane, nitrous oxide, and water vapor.

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Polar bear, why is your world melting?

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