Ron,
"unrenewable"? All the dead animal and plant stuff of today will generate more oil for the future. When we run out, that will be temporary. In fact, the pollution I generate today will boost the rate of death for all living things, and thereby contribute to future petrolium supplys.
Lest anyone take my comments to seriously, I do not! I am just a wisenheim. In fact, although I keep trying to be a vegitariaqn, I keep yieldiong to cravings for flesh. I