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In_II the_AT early_JJ 1970_MC221 's_MC222 ,_, a_AT1 book_NN1 popular_JJ among_II social_JJ scientists_NN2 and_CC other_JJ intellectuals_NN2 was_VBDZ published_VVN ._. 
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Entitled_VVN The_AT Population_NN1 Bomb_NN1 ,_, it_PPH1 predicted_VVD widespread_JJ global_JJ catastrophe_NN1 by_II the_AT turn_NN1 of_IO the_AT twenty-first_MD century_NNT1 ,_, caused_VVN by_II a_AT1 population_NN1 that_CST would_VM far_RR exceed_VVI the_AT earth_NN1 's_GE carrying_NN1 capacity_NN1 ._. 
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Fortunately_RR ,_, the_AT prophecies_NN2 of_IO The_AT Population_NN1 Bomb_NN1 and_CC its_APPGE "_" gloom-and-doom_JJ "_" adherents_NN2 have_VH0 proved_VVN to_TO be_VBI greatly_RR exaggerated_VVN ._. 
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However_RR ,_, there_EX is_VBZ little_RR doubt_VV0 that_DD1 overpopulation_NN1 is_VBZ a_AT1 serious_JJ problem_NN1 ,_, particularly_RR in_II the_AT undeveloped_JJ and_CC developing_JJ world_NN1 ._. 
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Many_DA2 African_JJ countries_NN2 ,_, as_II31 well_II32 as_II33 Indonesia_NP1 ,_, India_NP1 ,_, and_CC China_NP1 ,_, consider_VV0 overpopulation_NN1 their_APPGE biggest_JJT problem_NN1 ._. 
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These_DD2 countries_NN2 realize_VV0 that_CST ,_, at_II some_DD point_NN1 ,_, their_APPGE population_NN1 will_VM exceed_VVI their_APPGE area_NN1 and_CC resources_NN2 ._. 
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They_PPHS2 are_VBR already_RR feeling_VVG some_DD effects_NN2 of_IO overpopulation_NN1 ._. 
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In_II some_DD countries_NN2 ,_, overpopulation_NN1 is_VBZ already_RR very_RG serious_JJ ._. 
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Clearly_RR ,_, measures_NN2 must_VM be_VBI taken_VVN to_TO curb_VVI population_NN1 growth_NN1 ._. 
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China_NP1 and_CC its_APPGE one_MC1 child_NN1 policy_NN1 has_VHZ been_VBN the_AT most_RGT successful_JJ of_IO all_DB overpopulated_JJ nations_NN2 ._. 
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However_RR ,_, even_RR China_NP1 's_GE success_NN1 has_VHZ been_VBN moderate_JJ ,_, as_CSA its_APPGE population_NN1 is_VBZ still_RR growing_JJ (_( albeit_CS at_II a_AT1 decreased_JJ rate_NN1 )_) ._. 
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China_NP1 's_GE relocation_NN1 efforts_NN2 (_( which_DDQ include_VV0 providing_VVG incentives_NN2 for_IF those_DD2 in_II densely_RR populated_VVN areas_NN2 to_TO move_VVI to_II sparsely_RR populated_VVN areas_NN2 )_) and_CC economical_JJ use_NN1 of_IO land_NN1 have_VH0 also_RR been_VBN helpful_JJ ._. 
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Other_JJ nations_NN2 sometimes_RT turn_VV0 to_II relief_NN1 agencies_NN2 for_IF access_NN1 to_II contraception_NN1 ,_, sterilization_NN1 ,_, education_NN1 ,_, and_CC other_JJ measures_NN2 ._. 
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However_RR ,_, the_AT ethics_NN of_IO such_DA issues_NN2 always_RR provide_VV0 problems_NN2 ._. 
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With_IW continued_JJ effort_NN1 and_CC awareness_NN1 ,_, the_AT world_NN1 will_VM find_VVI a_AT1 humane_JJ and_CC effective_JJ way_NN1 to_TO stop_VVI overpopulation_NN1 ._. 
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Until_II then_RT ,_, humanity_NN1 can_VM only_RR keep_VVI trying_VVG with_IW the_AT most_RGT effective_JJ methods_NN2 known_VVN ._. 
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