▁is ▁in ▁des perate ▁need ▁of ▁aid ▁to ▁sust ain ▁itself , ▁being ▁so ▁frag ile . ▁ ▁While ▁state ▁reg ulations ▁are ▁in ▁place ▁to ▁reduce ▁em issions ▁in ▁effort ▁to ▁protect ▁the ▁environment ' s ▁air ▁quality , ▁international ▁initi atives ▁have ▁worked ▁towards ▁address ing ▁the ▁bro ader ▁issues . ▁For ▁instance , ▁the ▁many ▁chemical s ▁that ▁harm ▁the ▁o zone ▁layer ▁have ▁been ▁glob ally ▁restricted ▁to ▁emit ▁through ▁the ▁development ▁of ▁programs ▁that ▁focus ▁on ▁the ▁trad ing ▁of ▁em issions ▁( a ▁focus ▁reducing ▁acid ▁rain ▁or ▁adapt ing ▁to ▁climate ▁change ). ▁The ▁programs ▁also ▁collabor ate ▁to ▁identify ▁and ▁categor ize ▁air ▁poll ut ants ▁and ▁state ▁the ▁acceptable ▁level ▁of ▁em issions ▁and ▁necessary ▁mit ig ation ▁techn ologies . ▁ ▁Water ▁quality ▁is ▁also ▁a ▁prominent ▁topic ▁with ▁the ▁concern ▁of ▁impro ving ▁the ▁environment , ▁as ▁the ▁factor ▁has ▁a ▁direct ▁and ▁immediate ▁impact ▁on ▁the ▁life ▁around ▁it . ▁State ▁reg ulations ▁per ▁nation ▁implement ▁policies ▁regarding ▁se w age ▁treatment ▁and ▁dispos al , ▁as ▁well ▁as ▁man aging ▁all ▁agricult ural ▁and ▁industrial ▁waste water . ▁Legisl atures ▁also ▁work ▁to ▁control ▁the ▁level ▁of ▁surface ▁run off ▁that ▁comes ▁from ▁construction ▁sites ▁in ▁pre domin antly ▁urban ▁environments . ▁Additionally , ▁international ▁efforts ▁also ▁look ▁to ▁identify ▁and ▁categor ize ▁water ▁poll ut ants ▁and ▁state ▁the ▁acceptable ▁concentration ▁levels ▁in ▁water ▁resources . ▁ ▁Moreover , ▁policies ▁are ▁able ▁to ▁manage ▁municipal ▁solid ▁waste , ▁ha