Ah Virgil2U, the Moon weighs 1.6x10^23 lbs, so I don't think we'll be making a dent in that. Good to be concerned though.Forget about wars being started over this, removing anything from the moon on the scale of mining it is tantamount to the destruction of the Earth. even elementary school children know that the moon's gravitational effects cause the tides of the oceans and not to mention other oddities of the Earth and by removing substantial mass from the moon will alter its orbit and also the tides of the oceans on the Earth. I can't really believe that any scientist had approved this ridiculous idea. Without the orbit of the moon, we could drastically change our own orbit around the sun and could in the end in time cause the moon to crash into the sun or worse the Earth.