Need rocks for you head? Or for a sidewalk or foundation?

[kinzel]

This is using existing resources well:

http://www.onlinesentinel.com/news/old-hallowell-quarry-yields-granite-again_2010-06-14.html

Meanwhile, someone's funded a study proving that burning wood for energy isn't as good for the environment as burning coal:

http://news.cnet.com/8301-11128_3-20007484-54.html

but it seems the study may have left out the idea of using leftovers.

Well then, we need to see some really efficient oil-scooping submarines quickly, don't we?