in older, conventional wells. There may be many US senators who will tell you 'we have loads of oil' , but I'd rather believe the majority of industry specialists and geologists with real knowledge, who will tell you otherwise, and who don't need to get re-elected! Another point on ' sands & shale...an order of mag. cheaper'. Have you any idea of what's involved in scooping up millions of tonnes of tar/sand/gravel etc, (in one of the most inhospitable places imaginable), super heating it with steam to 200+ to separate it, then keeping it at similarly high temps. (to stop it solidifying) while it's sent thousands of kms. through the frozen tundra to a refinery south of the border....???? Not to begin to mention the issue of the toxic waste in the trailings ponds (lakes!), poisoned ground water and decimated landscape..! I will not enter into a discussion about climate change at this late hour (24:00 germany), but I will agree with you that the article, or at least its basis is delusional. Perhaps wishful is a better word. We don't like change. We, as a species, actively resist it. Especially when we believe (rightly or wrongly) that it will 'cost us'; financially or otherwise. Secondly. Jevons paradox. Summed up by the motor car. Gains in efficiency have continuously been lost, to increase the car's marketability. For example, a standard saloon car will now have as standard, radio, CD , electric windows, onboard computer (not a PC !), and many,