<prompt> Translate the following text to EnglishUchambuzi huu unaangalia athari za kupunguzwa kwa uchafuzi mwingi ambao ni sehemu ya Sheria ya anga safi kwa miaka miwili ya lengo ya baadaye, 2010 na 2020.  <response>: This analysis looks at the impacts of the multi-pollutant reductions that are part of the Clear Skies Act for two future target years, 2010 and 2020. 