More news on topic from Prof. P.Cullen, who, as understood, still
overcome a fate of his then-governing national-liberal cronies at a post
of an Australian Water Commissioner:

http://www.news.com.au/dailytelegraph/story/0,22049,23322876-5006009,00.\
html
<http://www.news.com.au/dailytelegraph/story/0,22049,23322876-5006009,00\
.html>



It is not so easy for students to grasp a semantic but significant
difference between "necessity" and "essentiality" while
analysing higher math solutions usually.



Perhaps, a title "professor" itself in areas not dealing with plying
native language only but in technical, applied science water-related
activities surely are, supposes one to clear distinct such a difference,
while speaking of roles petrol and water historically posses in/for
human existence.



Naively (?) misleading public on a very nature of and necessity for
human beings to merely survive hardly reflects distinctive realities of
both water-supply-responsible-government's obligations and simply
playing different power resources, among which oil/petrol are
artificially overestimated commodities in contemporary Australia
factually.



By a way, a human being can survive just a few days without water as
petrol and oil appeared on menu just about two centuries ago since
appetite for computing games substituted natural brain activities in
some "advanced civilised" countries.



[Non-text portions of this message have been removed]