▁broken ▁down ▁into ▁four ▁broad ▁categories : ▁Urban ▁S ust ain ability ▁and ▁the ▁Bu ilt ▁Environment ; ▁Water ▁and ▁E cos ystem ▁Services ; ▁Energy , ▁Bio fu els , ▁and ▁Cl imate ▁Change ; ▁and ▁Material ▁Management ▁and ▁Human ▁Health . ▁ ▁Urban ▁sust ain ability ▁and ▁the ▁built ▁environment ▁ ▁With ▁almost ▁ 8 0 % ▁of ▁all ▁US ▁residents ▁inhab iting ▁urban ▁areas ▁and ▁a ▁constant ▁increase ▁in ▁urban ▁growth , ▁the ▁E PA ▁has ▁worked ▁with ▁many ▁types ▁of ▁council ▁to ▁create ▁a ▁sector ▁based ▁sole ly ▁on ▁urban ▁sust ain ability ▁and ▁the ▁built ▁environment . ▁Ch anging ▁how ▁and ▁where ▁urban ▁development ▁takes ▁place ▁can ▁greatly ▁affect ▁habitat ▁protection , ▁water ▁resources , ▁energy ▁consumption , ▁the ▁quality ▁and ▁services ▁provided ▁by ▁an ▁e cos ystem , ▁and ▁ind oor ▁and ▁out door ▁air ▁quality . ▁With ▁recent ▁find ings ▁showing ▁more ▁than ▁ 4 0 % ▁of ▁energy ▁consumption ▁comes ▁from ▁buildings , ▁the ▁National ▁Science ▁and ▁Technology ▁Council ▁( N ST C ) ▁published ▁a ▁report ▁with ▁an ▁extensive ▁ag enda ▁for ▁research ▁and ▁development ▁to ▁reduce ▁the ▁consumption ▁of ▁natural ▁resources , ▁improve ▁ind oor ▁environments ▁and ▁reduce ▁em issions ▁of ▁harm ful ▁poll ut ants . ▁With ▁this , ▁the ▁E PA ▁has ▁created ▁programs ▁and ▁resources ▁to ▁help ▁states ▁and ▁their ▁communities ▁with ▁prom oting ▁urban ▁sust ain ability ▁and ▁supporting ▁smart ▁growth ▁projects , ▁green ▁infrastr ucture ▁and ▁building ▁design , ▁energy ▁efficient ▁homes ▁and ▁commercial ▁buildings , ▁as ▁well