cutting soot emission can prevent summer sea ice from melting. every country can contribute to the alleviation of global warming. Arctic countries should not develop heavy industry. we can stop global warming by taking effective measures.

WASHINGTONReuters-Two-thirdsoftheworld'spolarbearp

Polarbearsaresufferingina46warmworldthaneverbeforE

Polarbearsaresufferingina61warmworldthaneverbeforE

Withalargepartoftheworld'spopulationlivingclosetot

Inthepastfewyearsseaice____intheArcticasaresultofg

had melted has been melting melted is melting

Melting ice（融冰）can cause sea levels to rise. Since 1993, sea levels　　at a speed of 3.2 cm every 10...

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Melting ice（融冰）can cause sea levels to rise. Since 1993, sea levels at a speed of 3.2 cm every 10...

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Melting ice（融冰）can cause sea levels to rise. Since 1993, sea levels　　at a speed of 3.2 cm every 10...