There is another challenging portion of this subject matter that needs to be mentioned:
Forecasts suggest that when the world's population soars beyond 8bn in 20 years time, the global demand for food and energy will jump by 50%, with the need for fresh water rising by 30%.(BBC News). All this talk about global warming raising the depth of the ocean yet there being less and less drinking water, makes one think of the "water water everywhere, nor any drop to drink" saying of old.
But developing countries are already using significant proportions of their water to grow food and produce goods for consumption in the West, the report says.
"The burgeoning demand from developed countries is putting severe pressure on areas that are already short of water," said Professor Peter Guthrie, head of the Centre for Sustainable Development at Cambridge University, who chaired the steering group.
The bottom line we have been told about year after year, decade after decade, which we have ignored up until now, is that the global ecosystem is one united and interwoven living realm, so when we do anything to it that is harmful, it propagates through the entire system.
The point to remember now, since we are so far into the sequence of damaging events, is that at some point in time there is a convergence into a perfect storm:
Song writers mentioned that "time keeps on slipping slipping slipping into the future" in a popular song some time back, while the exclamation "just in time" indicates that only a portion of the vast amount of the totality of time is available for some efforts.(Shadow of Time Governs Earth). Like Toyota and its accelerator pedal problem, we have ignored the problem but that does not make it go away, it only gets worse.
Time is another one of those invisible realms, like gravity, that governs the earth from "the shadows", that is, the realm we cannot see even though we can see the effects of the unseen power at work.
[John Beddington, the UK government's chief scientific adviser] foresees each problem combining to create a "perfect storm" in which the whole is bigger, and more serious, than the sum of its parts.
The clock is still ticking on this time bomb, but our subconscious fear of death, which can lead to denial, is also still kicking.
UPDATE: A recent study, conducted both in the field and in the lab, indicates that 4/5ths of drinking water is located in Antarctica, and may melt into the ocean in this century.
That would do two things, destroy "civilization", and make drinking water worth its weight in gold.