Gareth Porter and Janet Brown claim that most experts fear that the greenhouse effect, and resultant global warming, will lead to

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     increasing air pollution, tropical diseases, and species extinction.
     overpopulation of nontropical forests.
     declining sea levels before the year 2050.
     shifting of arable farmland southward.
asked Apr 11, 2013 in Social Studies by anonymous
    

1 Answer

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increasing air pollution, tropical diseases, and species extinction.
answered Apr 13, 2013 by CoolCat ~Expert~ (2,305 points)



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