<prompt> Translate the following text to EnglishLengo ni kwa vyanzo kupata njia bora zaidi ya gharama ya kupunguza uzalishaji wa SO2 na kuwajibika kwa kufikia kupunguza uzalishaji huo.  <response>: The objective was for sources to find the most cost-effective means for limiting SO2 emissions and to be responsible for achieving those emission reductions. 