And from our instructor:
Hi John,
Thanks for your compliments, I enjoyed too, and do sincerely hope that our future generation is made acutely aware of the fact that not only energy but all natural resources are limited and many are renewable too.  We must be extremely careful in the exploitation of these and try to preserve as much as possible for generation to follow ours.  If I was able to inspire even one out of the many that were in the class, I have been amply rewarded for my time I volunteer willingly.
 Best wishes and regards,
Ashok Ghosh
[Ashok K Ghosh, Certified P. Geol/Geoph
AAPG, State of Arkansas & State of Texas.
P.O.Box 800172       Res:2106 Peppermill Road
Houston,TX 77280         Houston, Texas77080
Tel-B: 713 465 5301         Tel-H:713 465 3154
Fax:1 309 210 5278 ashok_ghosh@hotmail.com