The bible does say that the people will be gathering up weapons. I think that more than anything that activity will be a sober reminder of where we came from in contrast to where we "are".
the earth is able to cleanse itself if given the chance. God is able to and indeed will bring this planet back from the mess we've made of it. I do think that many current resourses will still be used in the new earth but with a clear view as to better management because the motives to provide for people will not be based on money and profit.
the men working tirelessly at the fukushima nuclear plant have more environmental conscience than a litterbug.
love michelle