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Sustainability_NN1 is_VBZ a_AT1 common_JJ buzz-word_NN1 that_CST can_VM be_VBI heard_VVN daily_RR in_II nearly_RR all_DB areas_NN2 of_IO life_NN1 ._. 
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We_PPIS2 hear_VV0 our_APPGE friends_NN2 ,_, politicians_NN2 ,_, and_CC the_AT media_NN all_RR throwing_VVG the_AT word_NN1 around_RP haphazardly_RR ,_, yet_RR interesting_JJ many_DA2 people_NN use_VV0 this_DD1 same_DA word_NN1 to_TO mean_VVI many_DA2 different_JJ things_NN2 ._. 
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No_AT single_JJ definition_NN1 is_VBZ commonly_RR accepted_VVN by_II everyone_PN1 and_CC it_PPH1 seems_VVZ everyone_PN1 has_VHZ their_APPGE own_DA idea_NN1 of_IO what_DDQ sustainability_NN1 means_VVZ to_II them_PPHO2 ._. 
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To_II me_PPIO1 ,_, sustainability_NN1 refers_VVZ to_II the_AT ability_NN1 of_IO people_NN in_II a_AT1 given_JJ area_NN1 to_TO satisfy_VVI their_APPGE needs_NN2 today_RT ,_, with_IW out_II jeopardizing_VVG the_AT needs_NN2 of_IO future_JJ generations_NN2 of_IO that_DD1 area_NN1 ._. 
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The_AT goal_NN1 is_VBZ to_TO have_VHI healthy_JJ and_CC successful_JJ places_NN2 now_RT ,_, and_CC ensure_VV0 that_CST such_DA places_NN2 will_VM still_RR be_VBI possible_JJ well_NN1 into_II the_AT future_NN1 ._. 
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Sustainability_NN1 is_VBZ also_RR commonly_RR defined_VVN to_TO include_VVI three_MC main_JJ components_NN2 :_: economics_NN1 ,_, environmentalism_NN1 ,_, and_CC social_JJ justice_NN1 ._. 
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While_CS I_PPIS1 agree_VV0 that_CST all_DB three_MC of_IO these_DD2 aspects_NN2 are_VBR important_JJ for_IF future_JJ generations_NN2 ,_, it_PPH1 seems_VVZ to_II me_PPIO1 environmental_JJ protection_NN1 is_VBZ the_AT most_RGT commonly_RR discussed_VVN and_CC debated_VVN issue_NN1 of_IO sustainability_NN1 ._. 
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I_PPIS1 feel_VV0 however_RR ,_, that_DD1 economic_JJ sustainability_NN1 is_VBZ a_AT1 key_JJ aspect_NN1 of_IO overall_JJ sustainability_NN1 that_CST deserves_VVZ more_DAR discussion_NN1 ,_, especially_RR in_II urban_JJ planning_NN1 ._. 
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To_TO begin_VVI with_IW ,_, economic_JJ sustainability_NN1 goals_NN2 compliment_VV0 many_DA2 other_JJ planning_NN1 goals_NN2 within_II cities_NN2 and_CC metropolitan_JJ regions_NN2 ._. 
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Economic_JJ sustainability_NN1 in_II a_AT1 city_NN1 is_VBZ achieved_VVN by_II evenly_RR distributed_VVN income_NN1 that_CST is_VBZ likely_JJ to_TO continue_VVI coming_VVG into_II the_AT city_NN1 for_IF the_AT years_NNT2 to_TO come_VVI ._. 
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There_EX are_VBR three_MC main_JJ ways_NN2 cities_NN2 commonly_RR maintain_VV0 strong_JJ economic_JJ sustainability_NN1 :_: through_II creating_VVG and_CC maintaining_VVG high_JJ property_NN1 values_NN2 ,_, lively_JJ commercial_JJ districts_NN2 ,_, and_CC industrial_JJ areas_NN2 and_CC facilities_NN2 ._. 
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High_JJ property_NN1 values_NN2 and_CC economic_JJ sustainability_NN1 go_VV0 hand-in-hand_JJ ._. 
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To_TO foster_VVI high_JJ property_NN1 values_NN2 ,_, municipalities_NN2 often_RR try_VV0 to_TO provide_VVI ample_JJ basic_JJ and_CC reliable_JJ infrastructure_NN1 such_II21 as_II22 water_NN1 ,_, sewer_NN1 ,_, electricity_NN1 ,_, and_CC public_JJ transportation_NN1 (_( Lecture_NN1 ,_, 11/20_MF )_) ._. 
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By_II investing_VVG in_II basic_JJ infrastructure_NN1 needs_NN2 ,_, the_AT city_NN1 is_VBZ allowing_VVG for_IF future_JJ desirable_JJ expansion_NN1 ._. 
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At_II the_AT same_DA time_NNT1 ,_, the_AT city_NN1 is_VBZ also_RR investing_VVG in_II its_APPGE own_DA economic_JJ future_NN1 by_II providing_VVG modern_JJ resources_NN2 now_RT so_BCL21 as_BCL22 to_TO reduce_VVI future_JJ costs_NN2 to_II the_AT city_NN1 ._. 
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Lively_JJ commercial_JJ districts_NN2 are_VBR a_AT1 planning_NN1 goal_NN1 of_IO many_DA2 communities_NN2 due_II21 to_II22 the_AT tax_NN1 base_NN1 and_CC revenue_NN1 they_PPHS2 provide_VV0 ._. 
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As_CSA people_NN will_VM always_RR have_VHI shopping_NN1 needs_NN2 ,_, they_PPHS2 will_VM help_VVI to_TO economically_RR sustain_VVI a_AT1 city_NN1 into_II the_AT future_NN1 ._. 
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As_CSA cities_NN2 such_II21 as_II22 Curitiba_NP1 ,_, Brazil_NP1 and_CC Portland_NP1 ,_, Oregon_NP1 have_VH0 showed_VVN us_PPIO2 ,_, creating_VVG pedestrian-friendly_JJ corridors_NN2 can_VM attract_VVI business_NN1 and_CC customers_NN2 ,_, while_CS at_II the_AT same_DA time_NNT1 provide_VV0 a_AT1 pleasant_JJ community_NN1 atmosphere_NN1 that_CST planners_NN2 often_RR seek_VV0 (_( The_AT Road_NN1 to_II Curitiba_NP1 )_) ._. 
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Industrial_JJ areas_NN2 are_VBR also_RR important_JJ from_II both_RR a_AT1 city_NN1 planner_NN1 and_CC economic_JJ sustainability_NN1 standpoint_NN1 ._. 
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Much_RR like_II commercial_JJ areas_NN2 ,_, city_NN1 planners_NN2 try_VV0 to_TO attract_VVI industry_NN1 to_II their_APPGE cities_NN2 because_CS industry_NN1 provides_VVZ tax_NN1 revenue_NN1 ,_, creates_VVZ jobs_NN2 for_IF residents_NN2 ,_, and_CC also_RR helps_VVZ bring_VVI money_NN1 into_II the_AT city_NN1 ._. 
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Even_RR in_II Ebenezer_NP1 Howard_NP1 's_GE model_NN1 Garden_NN1 City_NN1 ,_, which_DDQ advocated_VVD green_JJ cities_NN2 ,_, he_PPHS1 realized_VVD the_AT necessity_NN1 for_IF industrial_JJ areas_NN2 within_II cities_NN2 (_( Lecture_NN1 ,_, 11/6_MF )_) ._. 
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Industrial_JJ areas_NN2 are_VBR important_JJ for_IF economic_JJ sustainability_NN1 for_IF the_AT same_DA reasons_NN2 that_CST planners_NN2 desire_VV0 them_PPHO2 ._. 
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They_PPHS2 allow_VV0 money_NN1 to_TO stay_VVI within_II the_AT city_NN1 and_CC reduce_VVI the_AT need_NN1 of_IO residents_NN2 to_TO purchase_VVI products_NN2 and_CC find_VVI jobs_NN2 in_II other_JJ cities_NN2 (_( Lecture_NN1 ,_, 11/20_MF )_) ._. 
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Though_CS economic_JJ sustainability_NN1 complements_VVZ many_DA2 city_NN1 planning_NN1 goals_NN2 ,_, it_PPH1 can_VM also_RR at_II times_NNT2 contradict_VV0 city_NN1 planning_NN1 goals_NN2 ._. 
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The_AT clearest_JJT example_NN1 of_IO this_DD1 is_VBZ illustrated_VVN by_II the_AT resource_NN1 conflict_NN1 ._. 
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The_AT resource_NN1 conflict_NN1 is_VBZ the_AT struggle_NN1 created_VVN between_II economic_JJ development_NN1 and_CC environmental_JJ protection_NN1 which_DDQ can_VM be_VBI created_VVN when_CS planners_NN2 are_VBR trying_VVG to_TO achieve_VVI sustainable_JJ practices_NN2 (_( Lecture_NN1 ,_, 11/27_MF )_) ._. 
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In_II essence_NN1 ,_, increasing_VVG economic_JJ development_NN1 often_RR comes_VVZ at_II the_AT expense_NN1 of_IO environmental_JJ protection_NN1 and_CC vise_VV0 versa_NN1 ,_, all_DB the_AT while_NNT1 the_AT city_NN1 is_VBZ trying_VVG to_TO maintain_VVI a_AT1 balance_NN1 of_IO both_DB2 ._. 
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An_AT1 example_NN1 of_IO this_DD1 could_VM be_VBI increasing_VVG industrial_JJ development_NN1 ._. 
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While_CS this_DD1 is_VBZ economically_RR good_JJ for_IF the_AT city_NN1 ,_, at_II the_AT same_DA time_NNT1 it_PPH1 could_VM cause_VVI degradation_NN1 in_II local_JJ environmental_JJ quality_NN1 ._. 
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Another_DD1 way_NN1 in_II which_DDQ economic_JJ sustainability_NN1 can_VM contradict_VVI city_NN1 planning_NN1 goals_NN2 is_VBZ by_II property_NN1 conflict_NN1 ,_, which_DDQ is_VBZ the_AT struggle_NN1 between_II economic_JJ development_NN1 and_CC social_JJ equity_NN1 (_( Lecture_NN1 ,_, 11/27_MF )_) ._. 
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Going_VVG back_RP to_II the_AT industrial_JJ development_NN1 example_NN1 ,_, this_DD1 conflict_NN1 could_VM arise_VVI when_RRQ industrial_JJ development_NN1 occurs_VVZ ._. 
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While_CS this_DD1 is_VBZ good_JJ for_IF the_AT city_NN1 as_II a_AT1 whole_NN1 ,_, it_PPH1 could_VM disproportionately_RR jeopardize_VVI the_AT health_NN1 and_CC well-being_NN1 of_IO residents_NN2 closest_RRT to_II the_AT development_NN1 (_( Lecture_NN1 ,_, 11/29_MF )_) ._. 
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In_II this_DD1 case_NN1 ,_, the_AT city_NN1 would_VM not_XX be_VBI meeting_VVG one_MC1 of_IO its_APPGE goals_NN2 of_IO creating_VVG a_AT1 positive_JJ environment_NN1 for_IF its_APPGE residents_NN2 ._. 
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There_EX are_VBR many_DA2 different_JJ ways_NN2 planners_NN2 can_VM incorporate_VVI economic_JJ sustainability_NN1 into_II their_APPGE cities_NN2 ,_, many_DA2 of_IO which_DDQ have_VH0 already_RR been_VBN mentioned_VVN ._. 
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This_DD1 includes_VVZ planning_VVG for_IF and_CC creating_VVG reliable_JJ infrastructure_NN1 ,_, facilitating_VVG the_AT creation_NN1 and_CC growth_NN1 of_IO commercial_JJ areas_NN2 ,_, and_CC allowing_VVG for_IF and_CC encouraging_JJ industrial_JJ development_NN1 ._. 
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One_MC1 of_IO the_AT easiest_JJT ways_NN2 for_IF planners_NN2 to_TO help_VVI create_VVI economic_JJ sustainability_NN1 is_VBZ by_II the_AT use_NN1 of_IO zoning_NN1 ._. 
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Carefully_RR planned_VVN zoning_NN1 can_VM help_VVI the_AT city_NN1 best_RRT utilize_VV0 its_APPGE land_NN1 use_NN1 practices_NN2 to_TO create_VVI long-term_JJ sustainability_NN1 ._. 
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For_REX21 example_REX22 ,_, a_AT1 city_NN1 that_CST is_VBZ overly_RR zoned_JJ residential_JJ is_VBZ not_XX economically_RR sustainable_JJ ._. 
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Most_DAT of_IO the_AT residents_NN2 would_VM have_VHI to_TO find_VVI jobs_NN2 elsewhere_RL and_CC the_AT city_NN1 would_VM bring_VVI in_RP little_JJ revenue_NN1 from_II commercial_JJ and_CC industrial_JJ areas_NN2 ._. 
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Another_DD1 way_NN1 to_TO help_VVI bring_VVI about_RP economic_JJ sustainability_NN1 is_VBZ by_II31 means_II32 of_II33 regionalism_NN1 ._. 
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Municipalities_NN2 must_VM realize_VVI that_CST it_PPH1 may_VM be_VBI too_RG late_JJ to_TO plan_VVI for_IF economic_JJ sustainability_NN1 without_IW the_AT help_NN1 and_CC aid_NN1 of_IO neighboring_VVG cities_NN2 ._. 
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A_AT1 clear_JJ example_NN1 of_IO this_DD1 is_VBZ the_AT aerotropolis_NN1 idea_NN1 in_II metropolitan_JJ Detroit_NP1 ._. 
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Leaders_NN2 and_CC planners_NN2 in_II municipalities_NN2 near_II Metro-Airport_NP1 have_VH0 realized_VVN the_AT best_JJT way_NN1 to_TO ensure_VVI economic_JJ sustainability_NN1 is_VBZ to_TO work_VVI together_RL as_II a_AT1 region_NN1 to_TO create_VVI large_JJ scale_NN1 economic_JJ endeavors_NN2 (_( Lecture_NN1 ,_, 11/15_MF )_) ._. 
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Whereas_CS a_AT1 single_JJ city_NN1 may_VM not_XX be_VBI very_RG sustainable_JJ ,_, regions_NN2 working_VVG together_RL may_VM better_RRR be_VBI able_JK to_TO create_VVI a_AT1 sustainable_JJ future_NN1 for_IF that_DD1 area_NN1 ._. 
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Overall_RR ,_, economic_JJ development_NN1 is_VBZ just_RR one_MC1 key_JJ factor_NN1 of_IO a_AT1 sustainable_JJ city_NN1 ._. 
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In_II order_NN1 to_TO truly_RR be_VBI sustainable_JJ ,_, cities_NN2 must_VM also_RR create_VVI lasting_JJ environmental_JJ protection_NN1 and_CC social_JJ equity_NN1 ._. 
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It_PPH1 is_VBZ unlikely_JJ that_CST most_DAT cities_NN2 will_VM ever_RR become_VVI 100%_NNU sustainable_JJ ._. 
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Complete_JJ sustainability_NN1 is_VBZ an_AT1 unrealistic_JJ utopian_JJ ideal_NN1 ._. 
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However_RR ,_, with_IW a_AT1 little_JJ work_NN1 and_CC careful_JJ urban_JJ planning_NN1 ,_, cities_NN2 can_VM easily_RR take_VVI a_AT1 step_NN1 in_II the_AT right_JJ direction_NN1 ._. 
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