Prevention is generally more environmentally desirable and cost-effective than reaction after the fact, and should be prioritised.
Is fearr an cosc ó thaobh an chomhshaoil de i gcoitinne agus is éifeachtaí é ó thaobh costais de ná frithghníomh tar éis an ionraidh, agus ba cheart tosaíocht a thabhairt dó.