Ever hear of Coltan? Well, its the element used to manufacture all of the capacitors within cell phones, pda’s, computers, etc. and its only found within the dense mud of the African Rain Forests. It is also responsbile the cause of a number of mining efforts that are methodically destroying these forests as well as the surrounding environment (i.e. driving animal species to extinction). You can read an incredible article about it here. It will start to make you wonder where companies will go once they have totally exahausted the supply over there. And, at the rate electronic devices are selling these days, that could happen fairly quickly.