The smallest country in Central America has just passed a pretty big law regarding metal mining. El Salvador has just become the first country in the world to totally prohibit the exploration and mining of metals above or within the earth. style=”display:inline-block;width:300px;height:250px” data-ad-client=”ca-pub-8420654331411867″ data-ad-slot=”1313712966″> The law was passed by 70 different lawmakers on Wednesday in an…